Document:

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                                                                   Exhibit 10.21
                                 AMENDMENT NO. 1
                                       TO
                              MONITORING AGREEMENT
                              --------------------
                          (EXTENDING MONITORING PERIOD)

         THIS AMENDMENT NO. 1, is made to be effective as of July 1, 2003, and
intended to extend the term for Monitoring Services to be performed under the
Monitoring Agreement ("Agreement") effective as of July 1, 2002, by and between
ProFinance Holdings Corporation, an Ohio Corporation nka ProCentury Corporation
("ProCentury") and Stonehenge Opportunity Fund, LLC, an Ohio limited liability
company ("Stonehenge").

         WHEREAS, ProCentury and Stonehenge wish to extend the term of the
Agreement for the purpose of having Monitoring Services, as defined therein,
continue to be provided;

         NOW THEREFORE, in consideration of the mutual covenants and agreements
contained in the Agreement to be extended hereby, and for other good and
valuable consideration, the adequacy, sufficiency and receipt of which is hereby
acknowledged, ProCentury and Stonehenge agree as follows:

         That paragraph 1. MONITORING SERVICES, as set forth in the Agreement,
be and the same is hereby deleted in its entirety and the following provision is
substituted therefore, as follows:

              1.  MONITORING SERVICES. From July 1, 2003 through the first to
                  occur of either the date the "closing" takes place on
                  ProCentury's initial public offering when the net proceeds
                  therefrom are transferred to ProCentury by the underwriters,
                  or, December 31, 2003 (the "Extended Monitoring Period"),
                  Stonehenge shall perform such Monitoring Services as are
                  reasonably necessary, in Stonehenge's discretion, to monitor
                  its investment in ProFinance, and/or which may be reasonably
                  requested by ProCentury from time to time. Termination
                  pursuant to this provision, if occurring prior to December 31,
                  2003, shall not require prior written notice as contemplated
                  in provision 10. EARLY TERMINATION of the Agreement.

         In all other respects, the provisions of the Agreement shall remain
unchanged and continue to be in full force and effect according to the terms
thereof until the Extended Monitoring Period ends.

         IN WITNESS WHEREOF, the parties hereto have executed this Amendment
No. 1 to the Monitoring Agreement effective as of the date first set forth
above.

<TABLE>
<CAPTION>
         PROCENTURY CORPORATION                     STONEHENGE OPPORTUNITY FUND, LLC

<S>                                             <C>
   By:      /s/ John A. Marazza                 By:    /s/ Michael C.Schuler
         -----------------------------------         ---------------------------------
   Its:     EVP, COO & Secretary                Its:   Principal
         -----------------------------------         ---------------------------------
</TABLE>

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                              MONITORING AGREEMENT
                              --------------------

         THIS AGREEMENT is made to be effective as of July 1, 2002 by and
between ProFinance Holdings Corporation, an Ohio corporation ("ProFinance") and
Stonehenge Opportunity Fund, LLC, an Ohio limited liability company
("Stonehenge").

         WHEREAS, Stonehenge has made a venture capital investment in
ProFinance;

         WHEREAS, Stonehenge expends considerable time and effort in monitoring
its investment in ProFinance, which monitoring activities include but are not
limited to reviewing and evaluating ProFinance's financial statements, attending
meetings with ProFinance management and Board of Directors, and consulting with
ProFinance with respect to ProFinance's business and prospects (collectively,
the "Monitoring Services");

         NOW THEREFORE, in consideration of the mutual covenants and agreements
contained in this Agreement and for good and valuable consideration, the
adequacy, sufficiency and receipt of which is hereby acknowledged, ProFinance
and Stonehenge agree as follows:

         1. MONITORING SERVICES. From July 1, 2002 through June 30, 2003 (the
"Monitoring Period"), Stonehenge shall perform such Monitoring Services as are
reasonably necessary, in Stonehenge's discretion, to monitor its investment in
ProFinance, and/or which may be reasonably requested by ProFinance from time to
time.

         2. MONITORING FEES. In consideration for the Monitoring Services to be
performed by Stonehenge during the Monitoring Period, ProFinance shall pay to
Stonehenge $340,902 in cash (the "Monitoring Fee"), which Monitoring Fee shall
be payable in four (4) quarterly installments as follows: the installment for
the third quarter of 2002 of $86,913 due and payable by December 31, 2002; the
installment for the fourth quarter of 2002 of $86,913 due and payable by March
31, 2003; the installment for the first quarter of 2003 of $85,717 due and
payable by June 30, 2003; and the installment for the second quarter of 2003 or
$84,843.64 due and payable by September 30, 2003.

         3. SEVERABILITY. If any provision of this Agreement is declared or
found to be illegal, unenforceable or void by any administrative agency,
regulatory body or court of competent jurisdiction, such finding shall not
affect the remaining provisions of this Agreement, and all other provisions
hereof shall remain in full force and effect.

         4. GOVERNING LAW. This Agreement and all rights and obligations of the
parties hereunder shall be construed and interpreted under and pursuant to the
laws of the State of Ohio without regard to conflicts of law principles.

         5. WAIVER. No delay or omission by any party hereto to exercise any
right or power arising upon any noncompliance or default by the other party with
respect to any of the terms of this Agreement be construed as a waiver thereof.
A waiver by any of the parties hereto of the fulfillment of any of the
covenants, conditions, or agreements to be performed by the other

                                       2

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shall not be construed to be a waiver of any succeeding breach thereof or of any
other covenant, condition or agreement contained herein. No waiver or compromise
of any provision or condition hereof shall be effective unless evidenced by a
written instrument duly executed by the party hereto to be charged with such
waiver or compromise.

         6. ASSIGNMENT. This Agreement shall be binding upon and shall inure to
the benefit of the parties hereto and their respective successors and permitted
assigns. Neither party hereto may assign any of their respective rights and
obligations under this Agreement without the prior written consent of the other.

         7. COUNTERPARTS. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original and all of which
together shall constitute one and the same instrument.

         8. HEADINGS. The headings to the Sections of this Agreement are for
convenience only and in no way define, limit or describe the scope or intent of
this Agreement or any party hereto, nor in any other way affect this Agreement
or any part hereof.

         9. AMENDMENT. This Agreement shall not be altered or amended except
pursuant to an instrument in writing signed by the parties hereto.

         10. EARLY TERMINATION. Either party may terminate this Agreement at any
time during the Monitoring Period upon not less than 30 days prior written
notice of termination to the other party. In the event that this Agreement is
terminated prior to the end of the Monitoring Period, ProFinance shall pay to
Stonehenge any unpaid Monitoring Fees on a prorated basis through the date of
termination, with such payment being due and payable on or before the 120th day
following such termination.

         11. ENTIRE AGREEMENT. This Agreement, including all schedules attached
to this Agreement, constitutes the entire agreement between the parties
pertaining to the subject matter of this Agreement and supersedes all prior or
contemporaneous oral or written agreements, proposals and understandings.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement to
be effective as of the date first set forth above.

PROFINANCE HOLDINGS CORPORATION               STONEHENGE OPPORTUNITY FUND, LLC

By:     /s/ John A. Marazza                   By:   /s/ Michael C.Schuler
     -------------------------------                ---------------------------
Its:      EVP                                 Its:  Principal
     -------------------------------                ---------------------------

                                       3<PAGE>

                                                                 Exhibit 10-A(3)

                                SECOND AMENDMENT
                             TO THE DANA CORPORATION
                          ADDITIONAL COMPENSATION PLAN

                  Pursuant to resolutions of the Board of Directors adopted on
October 21, 2003, the Dana Corporation Additional Compensation Plan (the "Plan")
is hereby amended, effective as of December 8, 2003, as set forth below.

                  1.       Section 2.B. of the Plan is amended by deleting the
definition of "Change in Control of the Corporation" and replacing it in its
entirety as follows:

                  "Change in Control of the Corporation" shall mean the first to
         occur of any of the following events:

                  (i)      any Person is or becomes the Beneficial Owner,
         directly or indirectly, of securities of the Corporation (not including
         in the securities Beneficially Owned by such Person any securities
         acquired directly from the Corporation or its Affiliates) representing
         20% or more of the combined voting power of the Corporation's then
         outstanding securities, excluding any Person who becomes such a
         Beneficial Owner in connection with any acquisition by any corporation
         pursuant to a transaction that complies with clauses (A), (B) and (C)
         of paragraph (iii) below; or

                  (ii)     the following individuals cease for any reason to
         constitute a majority of the number of directors then serving:
         individuals who, on December 8, 2003, constitute the Board of Directors
         of the Corporation (the "Incumbent Board") and any new director whose
         appointment or election by the Board of Directors of the Corporation or
         nomination for election by the Corporation's stockholders was approved
         or recommended by a vote of at least two-thirds (2/3) of the directors
         then still in office who either were directors on December 8, 2003 or
         whose appointment, election or nomination for election was previously
         so approved or recommended. For purposes of the preceding sentence, any
         director whose initial assumption of office is in connection with an
         actual or threatened election contest, including but not limited to a
         consent solicitation, relating to the election of directors of the
         Corporation, shall not be treated as a member of the Incumbent Board;
         or

                  (iii)    there is consummated a merger, reorganization,
         statutory share exchange or consolidation or similar corporate
         transaction involving the Corporation or any direct or indirect
         subsidiary of the Corporation, a sale or other disposition of all or
         substantially all of the assets of the Corporation, or the acquisition
         of assets or stock of another entity by the Corporation or any of its
         subsidiaries (each a "Business Combination"), in each case unless,
         immediately following such Business Combination, (A) the voting
         securities of the Corporation outstanding immediately prior to such
         Business Combination (the "Prior Voting Securities") continue to
         represent (either by remaining outstanding or by being converted into
         voting securities of the surviving entity of the Business Combination
         or any parent thereof) at least 50% of the combined voting power of the
         securities of the Corporation or such surviving entity or parent
         thereof outstanding immediately after such Business Combination, (B) no
         Person is or becomes the Beneficial Owner, directly or indirectly, of
         securities of the Corporation or the surviving entity of the Business
         Combination or any parent thereof (not including in the

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         securities Beneficially Owned by such Person any securities acquired
         directly from the Corporation or its Affiliates) representing 20% or
         more of the combined voting power of the securities of the Corporation
         or surviving entity of the Business Combination or the parent thereof,
         except to the extent that such ownership existed immediately prior to
         the Business Combination and (C) at least a majority of the members of
         the board of directors of the Corporation or the surviving entity of
         the Business Combination or any parent thereof were members of the
         Incumbent Board at the time of the execution of the initial agreement
         or of the action of the Board providing for such Business Combination;
         or

                  (iv)     the stockholders of the Corporation approve a plan of
         complete liquidation or dissolution of the Corporation.

                  Notwithstanding the foregoing, any disposition of all or
         substantially all of the assets of the Corporation pursuant to a
         spinoff, splitup or similar transaction (a "Spinoff") shall not be
         treated as a Change in Control of the Corporation if, immediately
         following the Spinoff, holders of the Prior Voting Securities
         immediately prior to the Spinoff continue to beneficially own, directly
         or indirectly, more than 50% of the combined voting power of the then
         outstanding securities of both entities resulting from such
         transaction, in substantially the same proportions as their ownership,
         immediately prior to such transaction, of the Prior Voting Securities;
         provided, that if another Business Combination involving the
         Corporation occurs in connection with or following a Spinoff, such
         Business Combination shall be analyzed separately for purposes of
         determining whether a Change in Control of the Corporation has
         occurred.

                  2.       The following text is inserted at the end of
                           Section 4:

                           Upon the occurrence of a Change in Control of the
Corporation, all eligible participants who are named on the Corporate Award List
as of the date of the Change in Control of the Corporation and who are employed
by the Corporation or one of its subsidiaries as of the Change in Control of the
Corporation shall be entitled to receive a lump sum annual bonus payment as soon
as practicable following the Change in Control of the Corporation equal to the
product of (i) the greater of (x) the eligible participant's award level for the
Year as established by the Committee pursuant to Section 4.A. of the Plan and
(y) the eligible participant's Short Term Award calculated based on actual
performance through the date of the Change in Control of the Corporation (with
performance targets pro-rated for such period) and (ii) a fraction, the
numerator of which is the number of days in the Year prior to the date of the
Change in Control of the Corporation and the denominator of which is 365.

                           During the portion of any Year in which a Change in
Control of the Corporation occurs that follows the date of such Change in
Control of the Corporation, eligible participants who are named on the Corporate
Award List as of the date of the Change in Control of the Corporation and who
continue to be employed by the Company or its subsidiaries shall be entitled to
award levels, performance targets and bonus opportunities which would provide
them for the Year in which the Change in Control of the Corporation occurs with
aggregate award levels and performance targets that are no less favorable than
those initially in effect for the Year in which the Change in Control of the
Corporation occurs (taking into account the payment made under the immediately
preceding paragraph).

                           This Plan shall not be amended in anticipation of or
in conjunction with the occurrence of a Change in Control of the Corporation or
at any time following a Change in

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Control of the Corporation in any manner that would adversely affect the rights
of eligible participants under the Plan. No amendment or termination of this
Plan shall impair or diminish the obligations of the Company to any eligible
participants or the rights of any eligible participants under the Plan under any
notices or agreements previously issued pursuant to the Plan.

                  3.       Section 11 of the Plan is amended by adding the
following sentence at the end of such Section:

                  The Second Amendment to the Plan is effective as of December
8, 2003.

In Witness Whereof,  Dana Corporation has adopted this amendment.

                                            DANA CORPORATION

                                        By: /s/ R. B. Priory
                                            ---------------------------------
                                            Chairman of the Compensation
                                            Committee of the Board of Directors

ATTEST

/s/ R. W. Spriggle
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