Exhibit 10.4


                          REGISTRATION RIGHTS AGREEMENT

     This REGISTRATION RIGHTS AGREEMENT, dated as of December 31, 2003 (the
"Agreement"), is entered into by and among Metaldyne Corporation, a Delaware
corporation (the "Company"), each of the Company's subsidiaries listed on
Schedule I hereof (such subsidiaries, the "Guarantors"), and DaimlerChrysler
Corporation, a Delaware corporation (the "Initial Holder").

     The Company and the Initial Holder are parties to (i) the Amended and
Restated Operating Agreement, dated as of January 2, 2003 (the "Operating
Agreement"), and (ii) the Securities Purchase Agreement, dated as of the date
hereof (the "Purchase Agreement" and, together with the Operating Agreement, the
"Transaction Documents"), which provide for the sale by the Company to the
Initial Holder of $31,746,000 aggregate principal amount of the Company's 10%
Senior Subordinated Notes due 2014 (the "Securities"), which will be fully and
unconditionally guaranteed on an unsecured senior subordinated basis by each of
the Guarantors (the "Guarantees"). As an inducement to the Initial Holder to
enter into the Transaction Documents, the Company and the Guarantors have agreed
to provide to the Initial Holder and its direct and indirect transferees the
registration rights set forth in this Agreement. The execution and delivery of
this Agreement is a condition to the Metaldyne Call Option Closing (as defined
in the Operating Agreement).

     In consideration of the foregoing, the parties hereto agree as follows:

     Section 1. Definitions.

     As used in this Agreement, the following terms shall have the following
meanings:

     "Affiliate" shall mean, with respect to any Person, any other Person that,
directly or indirectly, through one or more intermediaries, controls, is
controlled by, or is under common control with, such Person, where "control"
means, with respect to any Person, the possession, directly or indirectly, of
the power to direct the management and policies of such Person, whether through
the ownership of voting securities, by contract or otherwise.

     "Business Day" shall mean any day that is not a Saturday, Sunday or other
day on which commercial banks in New York City are authorized or required by law
to remain closed.

     "Company" shall have the meaning set forth in the preamble and shall also
include the Company's successors.

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended
from time to time.

     "Exchange Date" shall have the meaning set forth in Section 2(a)(ii)
hereof.

     "Exchange Offer" shall mean the exchange offer by the Company and the
Guarantors of Exchange Securities for Registrable Securities pursuant to Section
2(a) hereof.



<PAGE>

     "Exchange Offer Registration" shall mean a registration under the
Securities Act effected pursuant to Section 2(a) hereof.

     "Exchange Offer Registration Statement" shall mean an exchange offer
registration statement on Form S-4 (or, if applicable, on another appropriate
form) and all amendments and supplements to such registration statement, in each
case including the Prospectus contained therein, all exhibits thereto and any
document incorporated by reference therein.

     "Exchange Securities" shall mean the 10% Senior Subordinated Notes due 2014
issued by the Company and guaranteed by the Guarantors under the Indenture
containing terms identical to the Securities and the Guarantees (except that the
Exchange Securities will not be subject to restrictions on transfer or to any
increase in annual interest rate for failure to comply with this Agreement) and
to be offered to Holders of Securities in exchange for Securities pursuant to
the Exchange Offer.

     "Guarantors" shall have the meaning set forth in the preamble and shall
also include any successors to the Guarantors.

     "Holders" shall mean the Initial Holder, for so long as it owns any
Registrable Securities, and each of its successors, assigns and direct and
indirect transferees who become owners of Registrable Securities under the
Indenture.

     "Indemnified Person" shall have the meaning set forth in Section 6(c)
hereof.

     "Indemnifying Person" shall have the meaning set forth in Section 6(c)
hereof.

     "Indenture" shall mean the Indenture relating to the Securities, dated as
of December 31, 2003, among the Company and the Guarantors as the same may be
amended or supplemented from time to time in accordance with the terms thereof,
including to designate a trustee pursuant to Section 5 hereof.

     "Initial Holder" shall have the meaning set forth in the preamble.

     "Inspector" shall have the meaning set forth in Section 3(m) hereof.

     "Majority Holders" shall mean the Holders of a majority of the aggregate
principal amount of outstanding Registrable Securities; provided that whenever
the consent or approval of Holders of a specified percentage of Registrable
Securities is required hereunder, Registrable Securities owned directly or
indirectly by the Company or any of its Affiliates shall not be counted in
determining whether such consent or approval was given by the Holders of such
required percentage or amount.

     "Person" shall mean an individual, partnership, limited liability company,
corporation, trust or unincorporated organization, or a government or agency or
political subdivision thereof.

     "Purchase Agreement" shall have the meaning set forth in the preamble.



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<PAGE>

     "Prospectus" shall mean the prospectus included in a Registration
Statement, including any preliminary prospectus, and any such prospectus as
amended or supplemented by any prospectus supplement, including a prospectus
supplement with respect to the terms of the offering of any portion of the
Registrable Securities covered by a Shelf Registration Statement, and by all
other amendments and supplements to such prospectus, and in each case including
any document incorporated by reference therein.

     "Registrable Securities" shall mean the Securities; provided that the
Securities shall cease to be Registrable Securities (i) when a Registration
Statement with respect to such Securities has been declared effective under the
Securities Act and such Securities have been exchanged or disposed of pursuant
to such Registration Statement, (ii) when such Securities have been sold
pursuant to Rule 144 or are eligible for resale pursuant to Rule 144(k) (or any
similar provision then in force, but not Rule 144A) under the Securities Act or
(iii) when such Securities cease to be outstanding.

     "Registration Expenses" shall mean any and all expenses incident to
performance of or compliance by the Company and the Guarantors with this
Agreement, including without limitation: (i) all SEC, stock exchange or National
Association of Securities Dealers, Inc. registration and filing fees, (ii) all
fees and expenses incurred in connection with compliance with state securities
or blue sky laws (including reasonable fees and disbursements of counsel for any
Underwriters or Holders in connection with blue sky qualification of any
Exchange Securities or Registrable Securities), (iii) all expenses of any
Persons in preparing or assisting in preparing, word processing, printing and
distributing any Registration Statement, any Prospectus and any amendments or
supplements thereto, any underwriting agreements, securities sales agreements or
other similar agreements and any other documents relating to the performance of
and compliance with this Agreement, (iv) all rating agency fees, (v) all fees
and disbursements relating to the qualification of the Indenture under
applicable securities laws, (vi) the fees and disbursements of the Trustee and
its counsel, (vii) the fees and disbursements of counsel for the Company and the
Guarantors and, in the case of a Shelf Registration Statement, the fees and
disbursements of one counsel for the Holders (which counsel shall be selected by
the Majority Holders and which counsel may also be counsel for the Initial
Holder) and (viii) the fees and disbursements of the independent public
accountants of the Company and the Guarantors, including the expenses of any
special audits or "comfort" letters required by or incident to the performance
of and compliance with this Agreement, but excluding fees and expenses of
counsel to the Underwriters (other than fees and expenses set forth in clause
(ii) above) or the Holders and underwriting discounts and commissions and
transfer taxes, if any, relating to the sale or disposition of Registrable
Securities by a Holder.

     "Registration Statement" shall mean any registration statement of the
Company and the Guarantors that covers any of the Exchange Securities or
Registrable Securities pursuant to the provisions of this Agreement and all
amendments and supplements to any such registration statement, including
post-effective amendments, in each case including the Prospectus contained
therein, all exhibits thereto and any document incorporated by reference
therein.

     "SEC" shall mean the Securities and Exchange Commission.

     "Securities" shall have the meaning set forth in the preamble.



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<PAGE>

     "Securities Act" shall mean the Securities Act of 1933, as amended from
time to time.

     "Shelf Registration" shall mean a registration effected pursuant to Section
2(b) hereof.

     "Shelf Registration Statement" shall mean a "shelf" registration statement
of the Company and the Guarantors that covers all the Registrable Securities
(but no other securities unless approved by the Holders whose Registrable
Securities to be covered by such Shelf Registration Statement) on an appropriate
form under Rule 415 under the Securities Act, or any similar rule that may be
adopted by the SEC, and all amendments and supplements to such registration
statement, including post-effective amendments, in each case including the
Prospectus contained therein, all exhibits thereto and any document incorporated
by reference therein.

     "Staff" shall mean the staff of the SEC.

     "Transaction Documents" shall have the meaning set forth in the preamble.

     "Trigger Date" shall mean the date on which the Initial Holder makes a
written demand of the Company to commence the registration process, which
written demand includes a statement that the Initial Holder has sold at least $5
million aggregate principal amount of Registrable Securities to an unaffiliated
third party.

     "Trust Indenture Act" shall mean the Trust Indenture Act of 1939, as
amended from time to time.

     "Trustee" shall mean the trustee with respect to the Securities under the
Indenture, who shall be appointed pursuant to Section 5 hereof.

     "Underwriter" shall have the meaning set forth in Section 3 hereof.

     "Underwritten Offering" shall mean an offering in which Registrable
Securities are sold to an Underwriter for reoffering to the public.

     Section 2. Registration Under the Securities Act.

     (a) To the extent not prohibited by any applicable law or applicable
interpretations of the Staff, following the Trigger Date, the Company and the
Guarantors shall use their reasonable best efforts to (i) cause to be filed an
Exchange Offer Registration Statement covering an offer to the Holders to
exchange all the Registrable Securities for Exchange Securities and (ii) have
such Registration Statement remain effective until the closing of the Exchange
Offer. The Company and the Guarantors shall commence the Exchange Offer promptly
after the Exchange Offer Registration Statement is declared effective by the SEC
and use their reasonable best efforts to complete the Exchange Offer not later
than 60 days after such effective date.

     The Company and the Guarantors shall commence the Exchange Offer by mailing
the related Prospectus, appropriate letters of transmittal and other
accompanying documents to each Holder stating, in addition to such other
disclosures as are required by applicable law:



                                      -4-
<PAGE>

     (i)  that the Exchange Offer is being made pursuant to this Agreement and
          that all Registrable Securities validly tendered and not properly
          withdrawn will be accepted for exchange;

     (ii) the dates of acceptance for exchange (which shall be a period of at
          least 20 Business Days from the date such notice is mailed) (each, an
          "Exchange Date");

     (iii) that any Registrable Security not tendered will remain outstanding
          and continue to accrue interest but will not retain any rights under
          this Agreement;

     (iv) that any Holder electing to have a Registrable Security exchanged
          pursuant to the Exchange Offer will be required to surrender such
          Registrable Security, together with the appropriate letters of
          transmittal, to the institution and at the address (located in the
          Borough of Manhattan, The City of New York) and in the manner
          specified in the notice, prior to the close of business on the last
          Exchange Date; and

     (v)  that any Holder will be entitled to withdraw its election, not later
          than the close of business on the last Exchange Date, by sending to
          the institution and at the address (located in the Borough of
          Manhattan, The City of New York) specified in the notice, a telegram,
          telex, facsimile transmission or letter setting forth the name of such
          Holder, the principal amount of Registrable Securities delivered for
          exchange and a statement that such Holder is withdrawing its election
          to have such Securities exchanged.

     As a condition to participating in the Exchange Offer, a Holder will be
required to represent to the Company and the Guarantors that (i) any Exchange
Securities to be received by it will be acquired in the ordinary course of its
business, (ii) at the time of the commencement of the Exchange Offer it has no
arrangement or understanding with any Person to participate in the distribution
(within the meaning of the Securities Act) of the Exchange Securities in
violation of the provisions of the Securities Act, (iii) it is not an
"affiliate" (within the meaning of Rule 405 under Securities Act) of the Company
or any Guarantor and (iv) if such Holder is a broker-dealer that will receive
Exchange Securities for its own account in exchange for Registrable Securities
that were acquired as a result of market-making or other trading activities,
then such Holder will deliver a Prospectus in connection with any resale of such
Exchange Securities.

     As soon as practicable after the last Exchange Date, the Company and the
Guarantors shall:

     (i)  accept for exchange Registrable Securities or portions thereof validly
          tendered and not properly withdrawn pursuant to the Exchange Offer;
          and

     (ii) deliver, or cause to be delivered, to the Trustee for cancellation all
          Registrable Securities or portions thereof so accepted for exchange by
          the Company and issue, and cause the Trustee to promptly authenticate
          and deliver to each Holder, Exchange Securities equal in principal
          amount to the principal amount of the Registrable Securities
          surrendered by such Holder.



                                      -5-
<PAGE>

     The Company and the Guarantors shall use their reasonable best efforts to
complete the Exchange Offer as provided above and shall comply with the
applicable requirements of the Securities Act, the Exchange Act and other
applicable laws and regulations in connection with the Exchange Offer. The
Exchange Offer shall not be subject to any conditions, other than that the
Exchange Offer does not violate any applicable law or applicable interpretations
of the Staff.

     (b) In the event that (i) the Company and the Guarantors determine that the
Exchange Offer Registration provided for in Section 2(a) above is not available
or may not be completed as soon as practicable after the last Exchange Date
because it would violate any applicable law or applicable interpretations of the
Staff, (ii) the Exchange Offer is not for any other reason completed by 210 days
after the Trigger Date or (iii) the Exchange Offer has been completed and in the
opinion of counsel for the Initial Holder a Registration Statement must be filed
and a Prospectus must be delivered by the Initial Holder in connection with any
offering or sale of Registrable Securities held by the Initial Holder, the
Company and the Guarantors shall use their reasonable best efforts to cause to
be filed as soon as practicable after such determination, date or notice of such
opinion of counsel is given to the Company, as the case may be, a Shelf
Registration Statement providing for the sale of all the Registrable Securities
by the Holders thereof (or Initial Holder that is a holder thereof in the case
of a Shelf Registration Statement filed pursuant to clause (iii) of this
sentence) and to have such Shelf Registration Statement declared effective by
the SEC.

     In the event that the Company and the Guarantors are required to file a
Shelf Registration Statement solely as a result of the matters referred to in
clause (iii) of the preceding sentence, the Company and the Guarantors shall use
their reasonable best efforts to file and have declared effective by the SEC
both an Exchange Offer Registration Statement pursuant to Section 2(a) with
respect to all Registrable Securities and a Shelf Registration Statement (which
may be a combined Registration Statement with the Exchange Offer Registration
Statement) with respect to offers and sales of Registrable Securities held by
the Initial Holder after completion of the Exchange Offer. The Company and the
Guarantors agree to use their reasonable best efforts to keep the Shelf
Registration Statement continuously effective until the expiration of the period
referred to in Rule 144(k) under the Securities Act with respect to the
Registrable Securities or such shorter period that will terminate when all the
Registrable Securities covered by the Shelf Registration Statement have been
sold pursuant to the Shelf Registration Statement. The Company and the
Guarantors further agree to supplement or amend the Shelf Registration Statement
and the related Prospectus if required by the rules, regulations or instructions
applicable to the registration form used by the Company for such Shelf
Registration Statement or by the Securities Act or by any other rules and
regulations thereunder for shelf registration or if reasonably requested by a
Holder of Registrable Securities with respect to information relating to such
Holder, and to use their reasonable best efforts to cause any such amendment to
become effective and such Shelf Registration Statement and Prospectus to become
usable as soon as thereafter practicable. The Company and the Guarantors agree
to furnish to the Holders of Registrable Securities copies of any such
supplement or amendment promptly after its being used or filed with the SEC.

     (c) The Company and the Guarantors shall pay all Registration Expenses in
connection with the registration pursuant to Section 2(a) and Section 2(b)
hereof. Each Holder shall pay



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<PAGE>

all underwriting discounts and commissions and transfer taxes, if any, relating
to the sale or disposition of such Holder's Registrable Securities pursuant to
the Shelf Registration Statement.

     (d) An Exchange Offer Registration Statement pursuant to Section 2(a)
hereof or a Shelf Registration Statement pursuant to Section 2(b) hereof will
not be deemed to have become effective unless it has been declared effective by
the SEC; provided that if, after it has been declared effective, the offering of
Registrable Securities pursuant to a Shelf Registration Statement is interfered
with by any stop order, injunction or other order or requirement of the SEC or
any court or other governmental or regulatory agency or body, such Registration
Statement will be deemed not to have become effective during the period of such
interference until the offering of Registrable Securities pursuant to such
Registration Statement may legally resume.

     In the event that either the Exchange Offer is not completed or a Shelf
Registration Statement, if required hereby, is not declared effective within 210
days of the Trigger Date, the interest rate on the Registrable Securities will
be increased by 1.00% per annum until the Exchange Offer is completed or the
Shelf Registration Statement, if required hereby, is declared effective by the
SEC or the Securities become freely tradable under the Securities Act.

     (e) Without limiting the remedies available to the Initial Holder and the
Holders, the Company and the Guarantors acknowledge that any failure by the
Company or the Guarantors to comply with their obligations under Section 2(a)
and Section 2(b) hereof may result in material irreparable injury to the Initial
Holder or the Holders for which there is no adequate remedy at law, that it will
not be possible to measure damages for such injuries precisely and that, in the
event of any such failure, the Initial Holder or any Holder may obtain such
relief as may be required to specifically enforce the Company's and the
Guarantors' obligations under Section 2(a) and Section 2(b) hereof.

     Section 3. Registration Procedures.

     In connection with their obligations pursuant to Section 2(a) and Section
2(b) hereof, the Company and the Guarantors shall as expeditiously as possible:

     (a) prepare and file with the SEC a Registration Statement on the
appropriate form under the Securities Act, which form (x) shall be selected by
the Company and the Guarantors, (y) shall, in the case of a Shelf Registration,
be available for the sale of the Registrable Securities by the selling Holders
thereof and (z) shall comply as to form in all material respects with the
requirements of the applicable form and include all financial statements
required by the SEC to be filed therewith; and use their reasonable best efforts
to cause such Registration Statement to become effective and remain effective
for the applicable period in accordance with Section 2 hereof;

     (b) prepare and file with the SEC such amendments and post-effective
amendments to each Registration Statement as may be necessary to keep such
Registration Statement effective for the applicable period in accordance with
Section 2 hereof and cause each Prospectus to be supplemented by any required
prospectus supplement and, as so supplemented, to be filed pursuant to Rule 424
under the Securities Act; and keep each Prospectus current during the period
described in Section 4(3) of and Rule 174 under the Securities Act that is
applicable to



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<PAGE>

transactions by brokers or dealers with respect to the Registrable Securities or
Exchange Securities;

     (c) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities, to counsel for the Initial Holder, to counsel for such
Holders and to each Underwriter of an Underwritten Offering of Registrable
Securities, if any, without charge, as many copies of each Prospectus, including
each preliminary Prospectus, and any amendment or supplement thereto in order to
facilitate the sale or other disposition of the Registrable Securities
thereunder; and the Company and the Guarantors consent to the use of such
Prospectus and any amendment or supplement thereto in accordance with applicable
law by each of the selling Holders of Registrable Securities and any such
Underwriters in connection with the offering and sale of the Registrable
Securities covered by and in the manner described in such Prospectus or any
amendment or supplement thereto in accordance with applicable law;

     (d) use their reasonable best efforts to register or qualify the
Registrable Securities under all applicable state securities or blue sky laws of
such jurisdictions as any Holder of Registrable Securities covered by a
Registration Statement shall reasonably request in writing by the time the
applicable Registration Statement is declared effective by the SEC; cooperate
with the Holders in connection with any filings required to be made with the
National Association of Securities Dealers, Inc.; and do any and all other acts
and things that may be reasonably necessary or advisable to enable each Holder
to complete the disposition in each such jurisdiction of the Registrable
Securities owned by such Holder; provided that neither the Company nor any
Guarantor shall be required to (i) qualify as a foreign corporation or other
entity or as a dealer in securities in any jurisdiction where it would not
otherwise be required to so qualify, (ii) file any general consent to service of
process in any such jurisdiction or (iii) subject itself to taxation in any such
jurisdiction if it is not so subject;

     (e) in the case of a Shelf Registration, notify each Holder of Registrable
Securities, counsel for such Holders and counsel for the Initial Holder promptly
and, if requested by any such Holder or counsel, confirm such advice in writing
(i) when a Registration Statement has become effective and when any
post-effective amendment thereto has been filed and becomes effective, (ii) of
any request by the SEC or any state securities authority for amendments and
supplements to a Registration Statement and Prospectus or for additional
information after the Registration Statement has become effective, (iii) of the
issuance by the SEC or any state securities authority of any stop order
suspending the effectiveness of a Registration Statement or the initiation of
any proceedings for that purpose, (iv) if, between the effective date of a
Registration Statement and the closing of any sale of Registrable Securities
covered thereby, the representations and warranties of the Company or any
Guarantor contained in any underwriting agreement, securities sales agreement or
other similar agreement, if any, relating to an offering of such Registrable
Securities cease to be true and correct in all material respects or if the
Company or any Guarantor receives any notification with respect to the
suspension of the qualification of the Registrable Securities for sale in any
jurisdiction or the initiation of any proceeding for such purpose, (v) of the
happening of any event during the period a Shelf Registration Statement is
effective that makes any statement made in such Registration Statement or the
related Prospectus untrue in any material respect or that requires the making of
any changes in such Registration Statement or Prospectus in order to make the
statements therein not misleading and (vi) of any determination



                                      -8-
<PAGE>

by the Company or any Guarantor that a post-effective amendment to a
Registration Statement would be appropriate;

     (f) use their reasonable best efforts to obtain the withdrawal of any order
suspending the effectiveness of a Registration Statement at the earliest
possible moment and provide immediate notice to each Holder of the withdrawal of
any such order;

     (g) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities, without charge, at least one conformed copy of each
Registration Statement and any post-effective amendment thereto (without any
documents incorporated therein by reference or exhibits thereto, unless
requested);

     (h) in the case of a Shelf Registration, cooperate with the selling Holders
of Registrable Securities to facilitate the timely preparation and delivery of
certificates representing Registrable Securities to be sold and not bearing any
restrictive legends and enable such Registrable Securities to be issued in such
denominations and registered in such names (consistent with the provisions of
the Indenture) as the selling Holders may reasonably request at least one
Business Day prior to the closing of any sale of Registrable Securities;

     (i) in the case of a Shelf Registration, upon the occurrence of any event
contemplated by Section 3(e)(iii) or 3(e)(v) hereof, use their reasonable best
efforts to prepare and file with the SEC a supplement or post-effective
amendment to a Registration Statement or the related Prospectus or any document
incorporated therein by reference or file any other required document so that,
as thereafter delivered to purchasers of the Registrable Securities, such
Prospectus will not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements therein, in the light of
the circumstances under which they were made, not misleading; and the Company
and the Guarantors shall notify the Holders of Registrable Securities to suspend
use of the Prospectus as promptly as practicable after the occurrence of such an
event, and such Holders hereby agree to suspend use of the Prospectus until the
Company and the Guarantors have amended or supplemented the Prospectus to
correct such misstatement or omission;

     (j) a reasonable time prior to the filing of any Shelf Registration
Statement, any related Prospectus, any amendment to a Shelf Registration
Statement or amendment or supplement to a related Prospectus or of any document
that is to be incorporated by reference into a Shelf Registration Statement or a
related Prospectus after initial filing of a Shelf Registration Statement,
provide copies of such document to the Initial Holder and its counsel and to the
Holders of Registrable Securities and their counsel and make such of the
representatives of the Company and the Guarantors as shall be reasonably
requested by the Initial Holder or its counsel or the Holders of Registrable
Securities or their counsel available for discussion of such document; and the
Company and the Guarantors shall not at any time after initial filing of a Shelf
Registration Statement file any amendment to the Shelf Registration Statement,
any related Prospectus or any amendment of or supplement to a Shelf Registration
Statement or a related Prospectus or any document that is to be incorporated by
reference into a Shelf Registration Statement or a related Prospectus, of which
the Initial Holder and its counsel and the Holders of Registrable Securities and
their counsel shall not have previously been advised and furnished a copy or to
which the Initial Holder or its counsel or the Holders or their counsel shall
reasonably object;



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<PAGE>

     (k) obtain a CUSIP number for all Exchange Securities or Registrable
Securities, as the case may be, not later than the effective date of a
Registration Statement;

     (l) cause the Indenture to be qualified under the Trust Indenture Act in
connection with the registration of the Exchange Securities or Registrable
Securities, as the case may be, and in the event such qualification would
require the appointment of a new Trustee under the Indenture, appoint a new
Trustee thereunder pursuant to the terms of the Indenture; cooperate with the
Trustee and the Holders to effect such changes to the Indenture as may be
required for the Indenture to be so qualified in accordance with the terms of
the Trust Indenture Act; and execute, and use their reasonable best efforts to
cause the Trustee to execute, all documents as may be required to effect such
changes and all other forms and documents required to be filed with the SEC to
enable the Indenture to be so qualified in a timely manner;

     (m) in the case of a Shelf Registration, make available for inspection by a
representative of the Holders of the Registrable Securities (an "Inspector"),
any Underwriter participating in any disposition pursuant to such Shelf
Registration Statement, and attorneys and accountants designated by the Holders,
at reasonable times and in a reasonable manner, all pertinent financial and
other records, pertinent documents and properties of the Company and the
Guarantors, and cause the respective officers, directors and employees of the
Company and the Guarantors to supply all information reasonably requested by any
such Inspector, Underwriter, attorney or accountant in connection with a Shelf
Registration Statement; provided that if any such information is identified by
the Company or any Guarantor as being confidential or proprietary, each Person
receiving such information shall take such actions as are reasonably necessary
to protect the confidentiality of such information to the extent such action is
otherwise not inconsistent with, an impairment of or in derogation of the rights
and interests of any Inspector, Holder or Underwriter;

     (n) in the case of a Shelf Registration, use their reasonable best efforts
to cause all Registrable Securities to be listed on any securities exchange or
any automated quotation system on which similar securities issued or guaranteed
by the Company or any Guarantor are then listed if requested by the Majority
Holders, to the extent such Registrable Securities satisfy applicable listing
requirements;

     (o) if reasonably requested by any Holder of Registrable Securities covered
by a Registration Statement, promptly incorporate in a Prospectus supplement or
post-effective amendment such information with respect to such Holder as such
Holder reasonably requests to be included therein and make all required filings
of such Prospectus supplement or such post-effective amendment as soon as the
Company has received notification of the matters to be incorporated in such
filing; and

     (p) in the case of a Shelf Registration, enter into such customary
agreements and take all such other actions in connection therewith (including
those requested by the Holders of a majority in principal amount of the
Registrable Securities being sold) in order to expedite or facilitate the
disposition of such Registrable Securities including, but not limited to, an
Underwritten Offering and in such connection, (i) to the extent possible, make
such representations and warranties to the Holders and any Underwriters of such
Registrable Securities with respect to the business of the Company and its
subsidiaries, the Registration Statement, Prospectus and docu-



                                      -10-
<PAGE>

ments incorporated by reference or deemed incorporated by reference, if any, in
each case, in form, substance and scope as are customarily made by issuers to
underwriters in underwritten offerings and confirm the same if and when
requested, (ii) obtain opinions of counsel to the Company and the Guarantors
(which counsel and opinions, in form, scope and substance, shall be reasonably
satisfactory to the Holders and such Underwriters and their respective counsel)
addressed to each selling Holder and Underwriter of Registrable Securities,
covering the matters customarily covered in opinions requested in underwritten
offerings, (iii) obtain "comfort" letters from the independent certified public
accountants of the Company and the Guarantors (and, if necessary, any other
certified public accountant of any subsidiary of the Company or any Guarantor,
or of any business acquired by the Company or any Guarantor for which financial
statements and financial data are or are required to be included in the
Registration Statement) addressed to each selling Holder and Underwriter of
Registrable Securities, such letters to be in customary form and covering
matters of the type customarily covered in "comfort" letters in connection with
underwritten offerings and (iv) deliver such documents and certificates as may
be reasonably requested by the Holders of a majority in principal amount of the
Registrable Securities being sold or the Underwriters, and which are customarily
delivered in underwritten offerings, to evidence the continued validity of the
representations and warranties of the Company and the Guarantors made pursuant
to clause (i) above and to evidence compliance with any customary conditions
contained in an underwriting agreement.

     In the case of a Shelf Registration Statement, the Company may require each
Holder of Registrable Securities to furnish to the Company such information
regarding such Holder and the proposed disposition by such Holder of such
Registrable Securities as the Company and the Guarantors may from time to time
reasonably request in writing.

     The Holders of Registrable Securities covered by a Shelf Registration
Statement who desire to do so may sell such Registrable Securities in an
Underwritten Offering. In any such Underwritten Offering, the investment banker
or investment bankers and manager or managers (the "Underwriters") that will
administer the offering will be selected by the Majority Holders of the
Registrable Securities included in such offering and shall be reasonably
acceptable to the Company and the Guarantors.

     Section 4. Suspension.

     (a) Notwithstanding any of the other provisions of this Agreement, but
subject to Section 4(c) hereof, in the case of a Shelf Registration Statement,
each Holder of Registrable Securities agrees that, upon receipt of a written
notice from the Company and the Guarantors of the happening of any event of the
kind described in Section 3(e)(iii) or 3(e)(v) hereof, such Holder will
forthwith discontinue disposition of Registrable Securities pursuant to such
Shelf Registration Statement until such Holder's receipt of the copies of the
supplemented or amended Prospectus contemplated by Section 3(i) hereof and, if
so directed by the Company and the Guarantors, such Holder will deliver to the
Company and the Guarantors all copies in its possession, other than permanent
file copies then in such Holder's possession, of the Prospectus covering such
Registrable Securities that is current at the time of receipt of such written
notice. If the Company and the Guarantors shall give any such written notice to
suspend the disposition of Registrable Securities pursuant to a Registration
Statement pursuant to this Section 4(a), the Company and the Guarantors shall
extend the period during which the Registration Statement



                                      -11-
<PAGE>

shall be maintained effective pursuant to this Agreement by the number of days
during the period from and including the date of the giving of such notice to
and including the date when the Holders shall have received copies of the
supplemented or amended Prospectus necessary to resume such dispositions.

     (b) Notwithstanding any of the other provisions of this Agreement, but
subject to Section 4(c) hereof, the Company shall have the right on one or more
occasions to delay the filing, amendment or effectiveness of a Shelf
Registration Statement or, if the Shelf Registration Statement has become
effective, to suspend the distribution or disposition of each Holder's
Registrable Securities pursuant to such Registration Statement in the event that
the board of directors of the Company determines in its reasonable good faith
judgment that (i) the filing, declaration of effectiveness or continued
effectiveness of such Shelf Registration Statement at such time would require
the Company to disclose therein a proposed or consummated financing,
reorganization or recapitalization, or pending or consummated negotiations
relating to a merger, consolidation, acquisition or similar transaction or other
business transaction, or other material event, which would otherwise adversely
affect the Company or (ii) pro forma and/or historical financial statements
meeting the requirements of the Securities Act as a result of any transaction
described in clause (i) above are not available at such time. Any delay or
suspension period pursuant to this Section 4(b) shall begin on the date
specified in a written notice given by the Company to the Holders and shall end
on the date specified in a subsequent written notice given by the Company to the
Holders. If the Company shall exercise its right to delay the filing, amendment
or effectiveness of a Shelf Registration Statement or to suspend the
distribution or disposition of each Holder's Registrable Securities pursuant to
such Registration Statement pursuant to this Section 4(b), the period within
which such Shelf Registration Statement must be declared effective or during
which the effectiveness of such Shelf Registration Statement must maintained
pursuant to this Agreement shall be extended by the number of days of the delay
or suspension period.

     (c) The Company may give a delay or suspension notice pursuant to Section 4
hereof at any time and from time to time; provided that the aggregate of all
delay and suspension periods during any 365-day period shall not exceed 90 days.

     Section 5. Appointment of Trustee.

     As soon as reasonably practicable following the Trigger Date, and in any
event before a Registration Statement is filed with the SEC pursuant to Section
2 hereof, the Company shall appoint a Trustee, and the Company, the Guarantors,
the Initial Holder and the Trustee shall execute a supplemental indenture to the
Indenture designating the Trustee as trustee with respect to the Securities
under the Indenture and otherwise amending the Indenture accordingly.

     Section 6. Indemnification and Contribution.

     (a) The Company and each Guarantor, jointly and severally, agree to
indemnify and hold harmless the Initial Holder and each Holder, their respective
Affiliates and each Person, if any, who controls the Initial Holder or any
Holder within the meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act, from and against any and all losses, claims, damages and
liabilities (including, without limitation, legal fees and other expenses
incurred in con-



                                      -12-
<PAGE>

nection with any suit, action or proceeding or any claim asserted), joint or
several, (i) arising out of or based upon any untrue statement or alleged untrue
statement of a material fact contained in any Registration Statement or any
Prospectus or (ii) arising out of or based upon any omission or alleged omission
to state therein a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading, except insofar as such losses, claims,
damages or liabilities are arising out of or based upon any untrue statement or
omission or alleged untrue statement or omission made in reliance upon and in
conformity with any information relating to the Initial Holder, or any Holder
furnished to the Company in writing through the Initial Holder or any selling
Holder expressly for use therein. In connection with any Underwritten Offering
permitted by Section 3, the Company and the Guarantors will also indemnify the
Underwriters, if any, selling brokers, dealers and similar securities industry
professionals participating in the distribution, their respective Affiliates and
each Person who controls such Persons (within the meaning of the Securities Act
and the Exchange Act) to the same extent as provided above with respect to the
indemnification of the Holders, if requested in connection with any Registration
Statement.

     (b) Each Holder agrees, severally and not jointly, to indemnify and hold
harmless the Company, the Guarantors, the Initial Holder and the other selling
Holders, their respective Affiliates, the directors of the Company and the
Guarantors, each officer of the Company and the Guarantors who signed the
Registration Statement and each Person, if any, who controls the Company, the
Guarantors, the Initial Holder and any other selling Holder within the meaning
of Section 15 of the Securities Act or Section 20 of the Exchange Act to the
same extent as the indemnity set forth in paragraph (a) above, but only with
respect to any losses, claims, damages or liabilities arising out of or based
upon any untrue statement or omission or alleged untrue statement or omission
made in reliance upon and in conformity with any information relating to such
Holder furnished to the Company in writing by such Holder expressly for use in
any Registration Statement and any Prospectus.

     (c) If any suit, action, proceeding (including any governmental or
regulatory investigation), claim or demand shall be brought or asserted against
any Person in respect of which indemnification may be sought pursuant to either
paragraph (a) or (b) above, such Person (the "Indemnified Person") shall
promptly notify the Person against whom such indemnification may be sought (the
"Indemnifying Person") in writing; provided that the failure to notify the
Indemnifying Person shall not relieve it from any liability that it may have
under this Section 6 except to the extent that it has been materially prejudiced
(through the forfeiture of substantive rights or defenses) by such failure; and
provided, further, that the failure to notify the Indemnifying Person shall not
relieve it from any liability that it may have to an Indemnified Person
otherwise than under this Section 6. If any such proceeding shall be brought or
asserted against an Indemnified Person and it shall have notified the
Indemnifying Person thereof, the Indemnifying Person shall retain counsel
reasonably satisfactory to the Indemnified Person to represent the Indemnified
Person and any others entitled to indemnification pursuant to this Section 6
that the Indemnifying Person may designate in such proceeding and shall pay the
fees and expenses of such counsel related to such proceeding. In any such
proceeding, any Indemnified Person shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such Indemnified Person unless (i) the Indemnifying Person and the Indemnified
Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person
has failed within a reasonable time to retain counsel reasonably satisfactory to
the Indemnified Person; (iii) the In-



                                      -13-
<PAGE>

demnified Person shall have reasonably concluded that there may be legal
defenses available to it that are different from or in addition to those
available to the Indemnifying Person; or (iv) the named parties in any such
proceeding (including any impleaded parties) include both the Indemnifying
Person and the Indemnified Person and representation of both parties by the same
counsel would be inappropriate due to actual or potential differing interests
between them. It is understood and agreed that the Indemnifying Person shall
not, in connection with any proceeding or related proceeding in the same
jurisdiction, be liable for the fees and expenses of more than one separate firm
(in addition to any local counsel) for all Indemnified Persons, and that all
such fees and expenses shall be reimbursed as they are incurred. Any such
separate firm (x) for the Initial Holder, its Affiliates and any control Persons
of such Initial Holder shall be designated in writing by the Initial Holder, (y)
for any Holder, its Affiliates and any control Persons of such Holder shall be
designated in writing by the Majority Holders and (z) in all other cases shall
be designated in writing by the Company. The Indemnifying Person shall not be
liable for any settlement of any proceeding effected without its written
consent, but if settled with such consent or if there be a final judgment for
the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified
Person from and against any loss or liability by reason of such settlement or
judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified
Person shall have requested that an Indemnifying Person reimburse the
Indemnified Person for fees and expenses of counsel as contemplated by this
paragraph, the Indemnifying Person shall be liable for any settlement of any
proceeding effected without its written consent if (i) such settlement is
entered into more than 30 days after receipt by the Indemnifying Person of such
request and (ii) the Indemnifying Person shall not have reimbursed the
Indemnified Person in accordance with such request prior to the date of such
settlement. No Indemnifying Person shall, without the written consent of the
Indemnified Person, effect any settlement of any pending or threatened
proceeding in respect of which any Indemnified Person is or could have been a
party and indemnification could have been sought hereunder by such Indemnified
Person, unless such settlement (A) includes an unconditional release of such
Indemnified Person in form and substance satisfactory to such Indemnified Person
from all liability on claims that are the subject matter of such proceeding and
(B) does not include any statement as to or any admission of fault, culpability
or a failure to act by or on behalf of any Indemnified Person.

     (d) If the indemnification provided for in paragraphs (a) and (b) above is
unavailable to an Indemnified Person or insufficient in respect of any losses,
claims, damages or liabilities referred to therein, then each Indemnifying
Person under such paragraph, in lieu of indemnifying such Indemnified Person
thereunder, shall contribute to the amount paid or payable by such Indemnified
Person as a result of such losses, claims, damages or liabilities (i) in such
proportion as is appropriate to reflect the relative benefits received by the
Company and the Guarantors from the offering of the Securities, on the one hand,
and by the Holders from receiving Securities or Exchange Securities registered
under the Securities Act, on the other hand, or (ii) if the allocation provided
by clause (i) is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits referred to in clause (i)
but also the relative fault of the Company and the Guarantors on the one hand
and the Holders on the other in connection with the statements or omissions that
resulted in such losses, claims, damages or liabilities, as well as any other
relevant equitable considerations. The relative fault of the Company and the
Guarantors on the one hand and the Holders on the other shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Company and the



                                      -14-
<PAGE>

Guarantors or by the Holders and the parties' relative intent, knowledge, access
to information and opportunity to correct or prevent such statement or omission.

     (e) The Company, the Guarantors and the Holders agree that it would not be
just and equitable if contribution pursuant to this Section 6 were determined by
pro rata allocation (even if the Holders were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in paragraph (d) above. The amount paid or
payable by an Indemnified Person as a result of the losses, claims, damages and
liabilities referred to in paragraph (d) above shall be deemed to include,
subject to the limitations set forth above, any legal or other expenses incurred
by such Indemnified Person in connection with any such action or claim.
Notwithstanding the provisions of this Section 6, in no event shall a Holder be
required to contribute any amount in excess of the amount by which the total
price at which the Securities or Exchange Securities sold by such Holder exceeds
the amount of any damages that such Holder has otherwise been required to pay by
reason of such untrue or alleged untrue statement or omission or alleged
omission. No Person guilty of fraudulent misrepresentation (within the meaning
of Section 11(f) of the Securities Act) shall be entitled to contribution from
any Person who was not guilty of such fraudulent misrepresentation.

     (f) The remedies provided for in this Section 6 are not exclusive and shall
not limit any rights or remedies that may otherwise be available to any
Indemnified Person at law or in equity.

     (g) The indemnity and contribution provisions contained in this Section 6
shall remain operative and in full force and effect regardless of (i) any
termination of this Agreement, (ii) any investigation made by or on behalf of
the Initial Holder or any Holder, their respective Affiliates or any Person
controlling the Initial Holder or any Holder, or by or on behalf of the Company,
the Guarantors, their respective Affiliates or the officers or directors of or
any Person controlling the Company or the Guarantors, (iii) acceptance of any of
the Exchange Securities and (iv) any sale of Registrable Securities pursuant to
a Shelf Registration Statement.

     Section 7. Miscellaneous.

     (a) No Inconsistent Agreements. The Company and the Guarantors represent,
warrant and agree that (i) the rights granted to the Holders hereunder do not in
any way conflict with and are not inconsistent with the rights granted to the
holders of any other outstanding securities issued or guaranteed by the Company
or any Guarantor under any other agreement and (ii) neither the Company nor any
Guarantor has entered into, or on or after the date of this Agreement will enter
into, any agreement that is inconsistent with the rights granted to the Holders
of Registrable Securities in this Agreement or otherwise conflicts with the
provisions hereof.

     (b) Amendments and Waivers. The provisions of this Agreement, including the
provisions of this sentence, may not be amended, modified or supplemented, and
waivers or consents to departures from the provisions hereof may not be given
unless the Company and the Guarantors have obtained the written consent of
Holders of at least a majority in aggregate principal amount of the outstanding
Registrable Securities affected by such amendment, modification, supplement,


                                      -15-
<PAGE>

waiver or consent; provided that no amendment, modification, supplement, waiver
or consent to any departure from the provisions of Section 6 hereof shall be
effective as against any Holder of Registrable Securities unless consented to in
writing by such Holder.

     (c) Notices. All notices and other communications provided for or permitted
hereunder shall be made in writing by hand-delivery, registered first-class
mail, telex, telecopier, or any courier guaranteeing overnight delivery (i) if
to a Holder, at the most current address given by such Holder to the Company by
means of a notice given in accordance with the provisions of this Section 7(c),
which address initially is, with respect to the Initial Holder, DaimlerChrysler
Corporation, 1000 Chrysler Drive, Auburn Hills, Michigan 48326, Attention:
General Counsel, Facsimile: (248) 512-1771, with a copy to Jones, Day, Reavis &
Pogue, 77 W. Wacker, Suite 3500, Chicago, Illinois 60601, Attention: Elizabeth
C. Kitslaar, Facsimile: (312) 782-8585; and (ii) if to the Company and the
Guarantors, at the Company's address, which address initially is Metaldyne
Corporation, 47603 Halyard Drive, Plymouth, Michigan 48170, Attention: Thomas A.
Amato and R. Jeffrey Pollock, Facsimile: (734) 207-6741 and (734) 207-6797, with
a copy to Cahill Gordon & Reindel, 80 Pine Street, New York, New York 10005,
Attention: W. Leslie Duffy and Jonathan A. Schaffzin, Facsimile: (212) 269-5420,
and thereafter at such other address, notice of which is given in accordance
with the provisions of this Section 7(c). All such notices and communications
shall be deemed to have been duly given: at the time delivered by hand, if
personally delivered; five Business Days after being deposited in the mail,
postage prepaid, if mailed; when answered back, if telexed; when receipt is
acknowledged, if telecopied; and on the next Business Day if timely delivered to
an air courier guaranteeing overnight delivery. Copies of all such notices,
demands or other communications shall be concurrently delivered by the Person
giving the same to the Trustee, if any, at the address specified in the
Indenture.

     (d) Successors and Assigns. This Agreement shall inure to the benefit of
and be binding upon the successors, assigns and transferees of each of the
parties, including, without limitation and without the need for an express
assignment, subsequent Holders; provided that nothing herein shall be deemed to
permit any assignment, transfer or other disposition of Registrable Securities
in violation of the terms of the Purchase Agreement. If any transferee of any
Holder shall acquire Registrable Securities in any manner, whether by operation
of law or otherwise, such Registrable Securities shall be held subject to all
the terms of this Agreement, and by taking and holding such Registrable
Securities such Person shall be conclusively deemed to have agreed to be bound
by and to perform all of the terms and provisions of this Agreement and such
Person shall be entitled to receive the benefits hereof. The Initial Holder (in
its capacity as Initial Holder) shall have no liability or obligation to the
Company or the Guarantors with respect to any failure by a Holder to comply
with, or any breach by any Holder of, any of the obligations of such Holder
under this Agreement.

     (e) Purchases and Sales of Securities. The Company and the Guarantors shall
not, and shall use their reasonable best efforts to cause their affiliates (as
defined in Rule 405 under the Securities Act) not to, purchase and then resell
or otherwise transfer any Registrable Securities.

     (f) Third Party Beneficiaries. Each Holder shall be a third party
beneficiary to the agreements made hereunder between the Company and the
Guarantors, on the one hand, and the Initial Holder, on the other hand, and
shall have the right to enforce such agreements directly to



                                      -16-
<PAGE>

the extent it deems such enforcement necessary or advisable to protect its
rights or the rights of other Holders hereunder.

     (g) Counterparts. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

     (h) Headings. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

     (i) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. THE COMPANY AND THE
GUARANTORS EACH HEREBY AGREES TO SUBMIT TO THE JURISDICTION OF THE COURTS OF THE
STATE OF NEW YORK, COUNTY OF NEW YORK, IN ANY ACTION OR PROCEEDING ARISING OUT
OF OR RELATING TO THIS AGREEMENT.

     (j) Miscellaneous. This Agreement contains the entire agreement between the
parties relating to the subject matter hereof and supersedes all oral statements
and prior writings with respect thereto. This Agreement may not be amended or
modified except by a writing executed by each of the parties hereto. Section
headings herein are for convenience only and are not a part of this Agreement.
If any term, provision, covenant or restriction contained in this Agreement is
held by a court of competent jurisdiction to be invalid, void or unenforceable
or against public policy, the remainder of the terms, provisions, covenants and
restrictions contained herein shall remain in full force and effect and shall in
no way be affected, impaired or invalidated. The Company, the Guarantors and the
Initial Holder shall endeavor in good faith negotiations to replace the invalid,
void or unenforceable provisions with valid provisions the economic effect of
which comes as close as possible to that of the invalid, void or unenforceable
provisions.

                     [Remainder of Page Intentionally Blank]


                                      -17-
<PAGE>



     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first written above.


                             METALDYNE CORPORATION





                             By:    /s/  Timothy D. Leuliette
                                    --------------------------------------
                                    Name:  Timothy D. Leuliette
                                    Title:    Chairman, President & CEO



                             EACH OF THE GUARANTORS LISTED ON SCHEDULE I HERETO:





                             By:    /s/  Timothy D. Leuliette
                                    ---------------------------------------
                                    Name:  Timothy D. Leuliette
                                    Title:    Chairman, President & CEO



                             DAIMLERCHRYSLER CORPORATION





                             By:    /s/  John C. Stellman
                                    ----------------------------------------
                                    Name:  John C. Stellman
                                    Title:    Vice President






                                      -18-
<PAGE>





                                   Schedule I

                              ER Acquisition Corp.
                              GMTI Holding Company
                         Halyard Aviation Services, Inc.
                             MASG Disposition, Inc.
                        MASX Energy Services Group, Inc.
                       Metaldyne Accura Tool & Mold, Inc.
                              Metaldyne Company LLC
                    Metaldyne DuPage Die Casting Corporation
                             Metaldyne Europe, Inc.
                        Metaldyne European Holdings Inc.
                  Metaldyne Lester Precision Die Casting, Inc.
                      Metaldyne Light Metals Company, Inc.
                 Metaldyne Machining and Assembly Company, Inc.
                  Metaldyne Precision Forming-Fort Wayne, Inc.
                            Metaldyne Services, Inc.
                 Metaldyne Sintered Components of Indiana, Inc.
                       Metaldyne Sintered Components, LLC
                        Metaldyne Tubular Products, Inc.
                           Metaldyne U.S. Holding Co.
                         Precision Headed Products, Inc.
                               Punchcraft Company
                            Stahl International, Inc.
                                              W.C. McCurdy & Co.
                             Windfall Products, Inc.
                        Windfall Specialty Powders, Inc.