Document:

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                                                                   EXHIBIT 10.51

                            LIFETIME PROGRAM CONTRACT
                       BETWEEN GENERAL MOTORS CORPORATION
                     NORTH AMERICAN OPERATIONS ("BUYER") AND
                 AMERICAN AXLE & MANUFACTURING, INC. ("SELLER")

1.      Purchase of Product

Seller agrees to sell, and Buyer agrees to purchase, 100% of Buyer's production
and service requirements for the following products (the "Product" or "Goods")
covered by this LPC:

    Part Number    Description    Per Unit Price    Annual Daily Tool Capacity
    -----------    -----------    --------------    --------------------------
        TBD             *               TBD                   TBD

*GMT900/920/930 (including all derivatives of the GMT900 platform) Driveline
 Components and Modules

Buyer and Seller agree that the AAM/GM June 14, 2001 agreement and December 21,
2001 agreement are hereby made a part of this contract and are incorporated by
reference. These referenced agreements contain the product description of
components and modules included in this lifetime program contract.

2.      Term

The term of this Agreement is for the "life of the Product", which is defined as
the duration of the GMT 900/920/930 style (including all derivatives of the
GMT900 platform) presently projected to run through June 2012.

3.      Prices; Price Reduction

The per unit price of the Product is F.O.B. Seller's Plant. The price of the GMT
900 series program components shall determined per the June 14, 2001 and
December 21, 2001 agreements between GM and AAM.

Except for increases or decreases in Seller's cost by reason of Seller's
participation in Buyer's Steel Resale Program; Buyer's pricing adjustment
policy(ies) for non-ferrous metals; permitted under the AAM/GM Purchasing
Transition agreement dated 10/5/99 (including metal market adjustments described
in paragraph 6), the AAM/GM Directed Buy Component Agreement dated 12/21/2000,
and the AAM/GM Foreign Currency Fluctuation Adjustment Procedure dated 8/31/01;
or otherwise permitted under Buyer's Purchase Order Terms and Conditions, no
adjustments will be made hereunder for increases or decreases in Seller's costs
for materials. Except for the increases or decreases set forth above, no other
pricing adjustments (e.g. labor or overhead) will be made except by agreement
between AAM and GM.

In addition, Buyer and Seller will use their best efforts to implement cost
savings and productivity improvements, in order to reduce Seller's costs, with
the understanding the 50 percent (50%) of jointly achieved net savings (after
deduction of expenditures for development, applications, engineering tools,
prototypes and financing) will be applied to reduce the price of the Product to
Buyer and the balance will be for the benefit of Seller.

4.       Supplier Development: Quality Control

Seller agrees to participate in Buyer's supplier quality and development
program(s). In addition, Seller shall comply with all quality requirements and
procedures specified by Buyer, as the same may be revised from time to time,
including those applicable to Seller as set forth in Quality System Requirements
QS-9000.

                                     Page 1
                                                                         5/29/03
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5.      Right to Purchase from Others

5.1     Seller will assure that the Product remains competitive in terms of
technology, design, and quality with similar goods available to Buyer during the
term of this Agreement. If, in the reasonable opinion of Buyer, the Product does
not remain competitive, Buyer, to the extent it is free to do so, will advise
Seller in writing of the area(s) in which another product is more competitive
with respect to technology, design or quality. If, within 150 days, Seller does
not agree to immediately sell the Product with comparable technology, design or
quality, Buyer may give notice of termination of this Agreement and after a
period of one (1) year after such notice may purchase from another supplier
without liability to Seller.

5.2     It is agreed by the parties that nothing in this Paragraph 5 shall
modify or otherwise limit Buyer's right under Paragraph 12 ("Cancellation") of
Buyer's Purchase Order Terms and Conditions.

6.      Technical Information: Waiver of Claims

6.1     Buyer and Seller will cooperate to create, maintain, update and share
technical information about the Product and its manufacture, without
restriction, as needed, and in compliance with Buyer's drafting and math data
standards.

6.2     In the event Buyer exercises its right to terminate or cancel this
Agreement, for reasons other than those set forth in Paragraph 5 above, and then
makes the Product or purchases the Product from another supplier, Seller agrees
not to bring any action or claim against Buyer, its suppliers, dealers, or
customers for any reason, excluding any claim for infringement of patents or
other proprietary rights, arising from the manufacture, use and sale of the
Product or use of the information furnished by Seller to Buyer under this
Agreement. Seller will secure the necessary agreements with its employees and
sub-contractors to assure compliance with this Section 6.

7.      Purchase Order Terms and Conditions

Buyer's Purchase Order Terms and Conditions (1986), a copy of which is attached,
are hereby incorporated into this Agreement by reference. It is understood that
Paragraph 13 TERMINATION will not be applicable with respect to this contract.
Any amendment to or revision of such Terms and Conditions shall also become a
part hereof, provided that: (i) Buyer provides Seller with a copy of the Terms
and Conditions as amended or revised; and (ii) Seller does not object to said
amendment or revised Terms and Conditions within thirty (30) days after receipt.
The Terms and Conditions and any amendment or revision made a part thereof shall
be construed, to the extent possible, as consistent with the terms and
conditions set forth herein and as cumulative; provided, however, that if such
construction is unreasonable, terms and conditions set forth herein shall
control.

This Agreement is effective upon its execution. The parties hereby agree that
this agreement supersedes the Component Supply Agreement between them, dated
February 28, 1994, as amended, as it relates to the subject matter contained
herein and removes any requirement with respect to components covered hereby for
GM to give notice of non-renewal under such agreement.

Seller                                Buyer

By      /s/ Michael C. Flinn          By     /s/ Jonathan Gardner
  -------------------------------       --------------------------------
Title   Director-Sales-AAM            Title  Global Commodity Manager
     ----------------------------          -----------------------------
Date    6/4/03                        Date   30 May 03
    -----------------------------         ------------------------------

                                     Page 2
                                                                         5/29/03Exhibit 4.3

                             CHESAPEAKE FUNDING LLC,
                                    as Issuer

                                       and

                              JPMORGAN CHASE BANK,
                              as Indenture Trustee

                          SUPPLEMENTAL INDENTURE No. 2

                            Dated as of May 27, 2003

                                       to

                                 BASE INDENTURE

                            Dated as of June 30, 1999

                               Asset Backed Notes
                              (Issuable in Series)

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                                TABLE OF CONTENTS

                                                                            Page

SECTION 1:  CERTAIN DEFINED TERMS..............................................1

SECTION 2:  AMENDMENT TO BASE INDENTURE........................................1
     Section 2.1  Amendment to Section 3.2.....................................1

SECTION 3:  REPRESENTATIONS AND WARRANTIES.....................................2
     Section 3.1  Affirmation of Representations and Warranties................2
     Section 3.2  LLC Agreement and Governmental Authorization.................2
     Section 3.3  Binding Effect...............................................2
     Section 3.4  No Consent...................................................3

SECTION 4:   CONDITIONS PRECEDENT..............................................3

SECTION 5:   MISCELLANEOUS.....................................................4
     Section 5.1  Duplicate Originals..........................................4
     Section 5.2  Ratification and Effect......................................4
     Section 5.3  Severability of Provisions...................................4
     Section 5.4  Counterparts.................................................4
     Section 5.5  Table of Contents, Headings, etc.............................5
     Section 5.6  Choice of Law................................................5

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          SUPPLEMENTAL  INDENTURE No. 2, dated as of May 27, 2003 ("Supplemental
Indenture"),  to BASE  INDENTURE,  dated as of June 30, 1999, as supplemented by
Supplemental  Indenture No. 1, dated as of October 28, 1999,  between CHESAPEAKE
FUNDING LLC  (formerly  known as  Greyhound  Funding  LLC),  a special  purpose,
limited liability company established under the laws of Delaware (the "Issuer"),
and JPMORGAN CHASE BANK, a New York banking corporation ("JPMorgan"), as trustee
(in such capacity, the "Indenture Trustee").

                              W I T N E S S E T H:

          WHEREAS,  the Issuer and  JPMorgan  are  parties to a Base  Indenture,
dated as of June 30, 1999,  as  supplemented  by  Supplemental  Indenture No. 1,
dated as of October 28, 1999, (the "Base Indenture");

          WHEREAS,  the Issuer desires to amend the Base  Indenture  pursuant to
Section  12.1(d)  thereof  to  correct an  inconsistency  in certain  provisions
thereof;

          WHEREAS,  the Issuer has duly authorized the execution and delivery of
this Supplemental Indenture; and

          WHEREAS, JPMorgan, as Indenture Trustee, is willing to enter into this
Supplemental Indenture.

          NOW,  THEREFORE,  for and in consideration of the premises,  and other
good and  valuable  consideration  the  receipt  and  sufficiency  of which  are
acknowledged,  it is mutually  covenanted and agreed, that the Base Indenture be
amended and supplemented as follows:

          SECTION 1: CERTAIN DEFINED TERMS

          Certain  capitalized terms used herein, and not defined herein,  shall
have the  respective  meanings  assigned to such terms in the  Definitions  List
attached as Schedule 1 (the "Definitions  List") to the Base Indenture,  as such
Definitions List may be hereafter further amended or modified from time to time.

          SECTION 2: AMENDMENT TO BASE INDENTURE

          Section 2.1 Amendment to Section 3.2.

          Section 3.2(c) of the Base Indenture is hereby amended and restated in
its entirety as follows:

          "(c) Without  derogating  from the absolute  nature of the  assignment
          granted to the Indenture Trustee under this Indenture or the rights of
          the Indenture Trustee  hereunder,  the Issuer agrees that, unless such
          action  is  specifically   permitted  hereunder  or  under  the  other
          Transaction Documents,  it will not, without the prior written consent
          of the Holders of a Majority in Interest of each Series of Outstanding
          Notes, (i) amend, modify, waive,  supplement,  terminate or surrender,
          or  agree to any  amendment,  modification,  supplement,  termination,
          waiver  or

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          surrender of, the terms of any of the Issuer Assets,  including any of
          the  Transaction  Documents;  provided  that no  consent  of  Investor
          Noteholders  shall be  required  for any  amendment,  modification  or
          waiver  of  or  to  any   Transaction   Document  if  such  amendment,
          modification  or waiver  does not  adversely  affect  in any  material
          respect  the   Noteholders   of  any  Series  of  Investor  Notes  (as
          substantiated  by an Opinion of Counsel to such  effect) and  provided
          further that the Rating Agency  Condition is satisfied with respect to
          each  affected   Series  of  Investor  Notes;  or  (ii)  waive  timely
          performance  or observance by SPV under the Transfer  Agreement or the
          Origination  Trust,  VMS or the Servicer under the  Origination  Trust
          Documents.  Upon the occurrence of a Servicer  Termination  Event, the
          Issuer will not,  without the prior  written  consent of the Indenture
          Trustee or the  Holders of a Majority  in  Interest  of each Series of
          Outstanding  Notes,  terminate  the  Servicer  and appoint a successor
          Servicer in accordance with the Servicing Agreement and will terminate
          the Servicer and appoint a successor  Servicer in accordance  with the
          Servicing  Agreement  if so directed by the  Indenture  Trustee or the
          Holders  of a  Majority  in  Interest  of each  Series of  Outstanding
          Notes."

          SECTION 3: REPRESENTATIONS AND WARRANTIES

          In order to induce the Indenture Trustee to agree to this Supplemental
Indenture,  the Issuer  hereby  represents  and  warrants,  as follows,  for the
benefit of the Indenture  Trustee and the Investor  Noteholders,  as of the date
hereof.

          Section 3.1 Affirmation of Representations and Warranties.

          Each  representation  and warranty of the Issuer set forth in the Base
Indenture and in each other Transaction Document to which it is a party, is true
and  correct  as of the  date of this  Supplemental  Indenture  as  though  such
representation  or warranty  were being made on and as of the date hereof and is
hereby deemed repeated as though fully set forth herein.

          Section 3.2 LLC Agreement and Governmental Authorization.

          The  execution,  delivery  and  performance  by  the  Issuer  of  this
Supplemental  Indenture  (a)  is  within  the  Issuer's  power,  has  been  duly
authorized by all necessary action,  (b) requires no action by or in respect of,
or filing with,  any  governmental  body,  agency or official which has not been
obtained  and (c) does not  contravene,  or  constitute  a  default  under,  any
Requirement  of Law or any  provision  of  applicable  law, its  certificate  of
formation or the LLC Agreement or of any law or governmental  regulation,  rule,
contract,  agreement,  judgment,  injunction,  order, decree or other instrument
binding upon the Issuer or any of the Issuer Assets or result in the creation or
imposition  of any Lien on any  Issuer  Asset  except  for Liens  created by the
Indenture or the other Transaction  Documents.  This Supplemental  Indenture has
been executed and delivered by a duly authorized officer of the Issuer.

          Section 3.3 Binding Effect.

          This Supplemental  Indenture is a legal,  valid and binding obligation
of the  Issuer  enforceable  against  the  Issuer in  accordance  with its terms
(except  as  such  enforceability  may be

                                      -2-

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limited  by  bankruptcy,  insolvency,  fraudulent  conveyance,   reorganization,
moratorium and other similar laws affecting  creditors'  rights  generally or by
general equitable  principles,  whether  considered in a proceeding at law or in
equity and by an implied covenant of good faith and fair dealing).

          Section 3.4       No Consent.

                  No consent, action by or in respect of, approval or other
authorization of, or registration, declaration or filing with, any Governmental
Authority or other Person is required for the valid execution and delivery of
this Supplemental Indenture or for the performance of any of the Issuer's
obligations hereunder other than such consents, approvals, authorizations,
registrations, declarations or filings as were obtained by the Issuer prior to
the date hereof.

          SECTION 4: CONDITIONS PRECEDENT

          This  Supplemental  Indenture  shall  become  effective  and  shall be
binding on each of the  parties  hereto upon the  satisfaction  or due waiver of
each of the following conditions precedent:

     (i) The Indenture Trustee shall have received evidence  satisfactory to it
          that  each  Manager  of the  Issuer  has  approved  this  Supplemental
          Indenture.

     (ii) The Indenture Trustee shall have received an Manager's  Certificate of
          the  Issuer,  dated as of the date  hereof,  to the effect that (i) no
          Amortization Event,  Potential Amortization Event, Event of Default or
          Potential  Event of Default is continuing or will occur as a result of
          the execution and delivery of this Supplemental Indenture and (ii) the
          execution and delivery of this Supplemental  Indenture will not result
          in any  breach of any of the terms,  conditions  or  provisions  of or
          constitute a default under any indenture,  mortgage,  deed of trust or
          other  agreement or instrument,  including,  without  limitation,  any
          Transaction Document, to which the Issuer is a party or by which it or
          its  property  is bound or any  order of any  court or  administrative
          agency entered in any suit, action or other judicial or administrative
          proceeding to which the Issuer is party or by which it or its property
          may be bound or to which it or its property may be subject.

    (iii) The Indenture Trustee shall have received an Manager's  Certificate of
          the  Issuer,  dated  as of the date  hereof,  to the  effect  that all
          conditions  precedent  provided for in the Base Indenture with respect
          to the execution and delivery of this Supplemental Indenture have been
          complied with in all material respects;

     (iv) The  Indenture  Trustee  shall have  received  an Opinion of  Counsel,
          subject to the assumptions and qualifications stated therein, and in a
          form substantially acceptable to the Indenture Trustee, dated the date
          hereof, substantially to the effect that:

          (a)  all conditions  precedent provided for in the Base Indenture with
               respect  to the  execution  and  delivery  of  this  Supplemental
               Indenture have been complied with in all material respects;

                                      -3-

<PAGE>

          (b)  the  Issuer  is duly  organized  under  the  jurisdiction  of its
               formation  and has the power and authority to execute and deliver
               this Supplemental Indenture;

          (c)  this  Supplemental  Indenture has been duly authorized,  executed
               and delivered by the Issuer;

          (d)  the  Supplemental  Indenture  constitutes  the  legal,  valid and
               binding obligation of the Issuer,  enforceable against the Issuer
               in  accordance  with  its  terms,  except  as the  enforceability
               thereof may be limited by bankruptcy, insolvency, reorganization,
               moratorium  and other similar laws  affecting the  enforcement of
               creditors'  rights generally and by general  principles of equity
               (regardless of whether the issue of  enforceability is considered
               in a proceeding in equity or at law); and

          (e)  such  other  matters  as the  Indenture  Trustee  may  reasonably
               require.

     (v)  The  Indenture  Trustee  shall have  received  such  other  documents,
          instruments,   certifications,   agreements  or  other  items  as  the
          Indenture Trustee may reasonably require.

          SECTION 5: MISCELLANEOUS

          Section 5.1 Duplicate Originals.

          The  parties  may sign  any  number  of  copies  of this  Supplemental
Indenture. One signed copy is enough to prove this Supplemental Indenture.

          Section 5.2 Ratification and Effect.

          The Base Indenture,  as amended and supplemented by this  Supplemental
Indenture No. 2, is in all respects ratified and confirmed, shall continue to be
in full force and effect,  and shall be read, taken and construed as one and the
same instrument.

          Section 5.3 Severability of Provisions.

          If any one or more of the covenants,  agreements,  provisions or terms
of this Supplemental  Indenture shall for any reason whatsoever be held invalid,
then such covenants,  agreements,  provisions or terms shall be deemed severable
from  the  remaining  covenants,   agreements,   provisions  or  terms  of  this
Supplemental Indenture and shall in no way affect the validity of enforceability
of the other provisions of this Supplemental Indenture.

          Section 5.4 Counterparts.

          This   Supplemental   Indenture   may  be  executed  in  two  or  more
counterparts (and by different parties on separate counterparts),  each of which
shall be an original,  but all of which  together  shall  constitute one and the
same instrument.

                                      -4-

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          Section 5.5 Table of Contents, Headings, etc.

          The  table  of  contents   and   headings  of  the  Sections  of  this
Supplemental Indenture have been inserted for convenience of reference only, are
not to be  considered a part hereof,  and shall in no way modify or restrict any
of the terms or provisions hereof.

          Section 5.6 Choice of Law.

          THIS  SUPPLEMENTAL  INDENTURE  SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

                                      -5-

<PAGE>

          IN WITNESS WHEREOF,  the Indenture  Trustee and the Issuer have caused
this  Supplemental  Indenture No. 2 to be duly executed by their respective duly
authorized officers as of the day and year first written above.

                                        CHESAPEAKE FUNDING LLC,
                                        as Issuer

                                        By: /s/ Joseph W. Weikel
                                           ------------------------------
                                                   Manager

                                        JPMORGAN CHASE BANK,
                                        as Indenture Trustee

                                        By: /s/ Connie Cho
                                           ------------------------------
                                                 Trust Officer

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