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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                             ---------------------

                                AMENDMENT NO. 4
                                       TO

                                  SCHEDULE TO
                                 (RULE 14d-100)

           TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                                DANA CORPORATION
                       (Name of Subject Company (Issuer))

                            DELTA ACQUISITION CORP.
                               ARVINMERITOR, INC.
                      (Names of Filing Persons (Offerors))

                    COMMON STOCK, PAR VALUE $1.00 PER SHARE
                         (Title of Class of Securities)

                                    23581110
                     (CUSIP Number of Class of Securities)

                             ---------------------

                           VERNON G. BAKER, II, ESQ.
                               ARVINMERITOR, INC.
                              2135 WEST MAPLE ROAD
                              TROY, MICHIGAN 48084
                           TELEPHONE: (248) 435-1000
(Name, Address and Telephone Numbers of Person Authorized to Receive Notices and
                  Communications on Behalf of Filing Persons)

                                   COPIES TO:

                            DENNIS J. FRIEDMAN, ESQ.
                            STEVEN P. BUFFONE, ESQ.
                          GIBSON, DUNN & CRUTCHER LLP
                                 200 PARK AVE.
                            NEW YORK, NEW YORK 10166
                           TELEPHONE: (212) 351-4000

[ ] Check the box if the filing relates solely to preliminary communications
    made before the commencement of a tender offer:

[X] Check the appropriate boxes below to designate any transactions to which the
    statement relates:

   [X] third-party tender offer subject to Rule 14d-1.

   [ ] issuer tender offer subject to Rule 13e-4.

   [ ] going-private transaction subject to Rule 13e-3.

   [ ] amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results
of the tender offer: [ ]
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                                  SCHEDULE TO

     This Amendment No. 4 to the Tender Offer Statement on Schedule TO amends
and supplements the statement originally filed on July 9, 2003 (as amended or
supplemented prior to the date hereof, the "Schedule TO") by ArvinMeritor, Inc.,
an Indiana corporation ("Parent"), and Delta Acquisition Corp., a Virginia
corporation and a wholly owned subsidiary of Parent (the "Purchaser"). The
Schedule TO relates to the offer by the Purchaser to purchase (1) all
outstanding shares ("Shares") of common stock, par value $1.00 per share, of
Dana Corporation, a Virginia corporation (the "Company"), and (2) unless and
until validly redeemed by the board of directors of the Company, the associated
rights to purchase shares of Series A Junior Participating Preferred Stock, no
par value, of the Company (the "Rights") issued pursuant to the Rights
Agreement, dated as of April 25, 1996 (as amended from time to time, the "Rights
Agreement"), by and between the Company and Chemical Mellon Shareholder Services
L.L.C., as Rights Agent, at a price of $15.00 per Share, net to the seller in
cash, without interest, upon the terms and subject to the conditions set forth
in the Offer to Purchase, dated July 9, 2003 (as amended or supplemented prior
to the date hereof, the "Offer to Purchase"), and in the related Letter of
Transmittal. Unless the context otherwise requires, all references to the Shares
shall be deemed to include the associated Rights, and all references to the
Rights shall be deemed to include the benefits that may inure to holders of
Rights pursuant to the Rights Agreement. This Amendment No. 4 to the Schedule TO
is being filed on behalf of the Purchaser and Parent.

     Capitalized terms used and not defined herein have the meanings specified
in the Offer to Purchase and the Schedule TO.

     The item numbers and responses thereto below are in accordance with the
requirements of Schedule TO.

ITEMS 1 THROUGH 11.

     The Offer to Purchase is hereby amended and supplemented as follows:

      (1) The Summary Term Sheet is hereby amended by inserting the following
          sentence as the third sentence under the question "Do you have the
          financial resources to pay for the shares?":

          "However, Parent has not yet entered into any agreements, commitments,
     credit facilities, letters of credit or other financing arrangements with
     respect to such new financings."

      (2) Section 10 is hereby amended by deleting the last sentence of the
          first paragraph and replacing it with the following:

          "Due to depressed demand in the light vehicle aftermarket industry and
     the resulting negative effect on the valuations for their aftermarket
     businesses, Parent and the Company ultimately concluded that it was not a
     favorable time to engage in such a sale transaction and ended their
     negotiations."

      (3) Section 10 is hereby amended by adding the following paragraphs to the
          end of such Section:

          "On July 22, 2003, the Company announced that its board of directors
     recommended that holders of Shares reject the Offer. That same day, Parent
     issued a press release in response to the Company's announcement. The full
     text of the press release issued by Parent on July 22, 2003 is filed as
     Exhibit (a)(5)(D) hereto and is incorporated herein by reference."

      (4) Section 12 is hereby amended by deleting the second paragraph of such
          Section in its entirety and replacing it with the following:

          "The Transaction Financing Amount is expected to include approximately
     $2.2 billion to purchase all outstanding Shares pursuant to the Offer and
     approximately $200 million to pay certain related fees, expenses and
     payments."

      (5) Section 12 is hereby amended by deleting the ninth paragraph of such
          Section in its entirety and replacing it with the following:

          "As discussed above, we currently expect that the Transaction
     Financing Amount will include at least approximately $3.72 billion,
     including approximately $2.2 billion to purchase all outstanding Shares,

                                        1


     approximately $200 million to pay certain related fees, expenses and
     payments, approximately $1.03 billion to finance the repurchase of
     indebtedness that may be put to the Company and approximately $290 million
     to refinance amounts outstanding under Parent's accounts receivable
     securitizations. However, there can be no assurance that the consummation
     of the Offer or the Proposed Merger, or the terms of the proposed New
     Financings, will not result in an event of default, cross default or other
     adverse consequences under any or all of the instruments defining the
     rights of the holders of indebtedness of Parent, the Company, DCC or any of
     their subsidiaries. As a result, it is possible that holders of all or a
     portion of any indebtedness of Parent, the Company, DCC or any of their
     subsidiaries, including without limitation the indebtedness described
     above, may have the right to require its immediate payment and Parent may
     need to refinance this indebtedness (which in certain cases may require the
     payment of a makewhole premium). If this occurs, Parent would seek to repay
     or refinance this indebtedness with the proceeds of the New Financings.
     Parent does not intend to structure the New Financings in a manner which
     would require the payment of substantial makewhole premiums or cause an
     event of default or cross default under any outstanding indebtedness of
     Parent, the Company, DCC or any of their subsidiaries."

      (6) Section 12 is hereby amended by adding the following sentence
          immediately after the first sentence of the last paragraph in such
          Section:

          "However, Parent has not yet entered into any agreements, commitments,
     credit facilities, letters of credit or other financing arrangements with
     respect to such New Financings."

      (7) Section 14 is hereby amended by deleting the condition set forth in
          paragraph (a)(5) of such Section in its entirety and replacing it with
          the following:

          "(5) seeking any material diminution in the benefits expected to be
     derived by the Purchaser, Parent or any other affiliate of Parent as a
     result of the transactions contemplated by the Offer or the Proposed Merger
     or any other business combination with the Company (see the caption
     entitled "Purpose of the Offer and Plans for the Company" in Section 11 for
     a discussion of such benefits),"

      (8) Section 14 is hereby amended by deleting the condition set forth in
          paragraph (a)(6) of such Section in its entirety and replacing it with
          the following:

          "(6) which otherwise, in the reasonable judgment of the Purchaser,
     might materially adversely affect the Purchaser, Parent or any other
     affiliate of Parent, or cause a decline in the trading price of the Shares
     in an amount in excess of 15% measured from the close of business on July
     7, 2003,"

      (9) Section 14 is hereby amended by deleting the condition set forth in
          paragraph (c) of such Section in its entirety and replacing it with
          the following:

          "(c) any change (or any condition, event or development involving a
     prospective change) shall have occurred or been threatened in the business,
     properties, assets, liabilities, capitalization, shareholders' equity,
     condition (financial or otherwise), operations, licenses, intellectual
     property, franchises, permits, permit applications, results of operations
     or prospects of the Company and its subsidiaries, taken as a whole, which,
     in the reasonable judgment of the Purchaser, is or may be materially
     adverse to, or the Purchaser shall have become aware of any fact which, in
     the reasonable judgment of the Purchaser, has or may have material adverse
     significance with respect to the value of the Company and its subsidiaries,
     taken as a whole, or cause a decline in the trading price of the Shares in
     an amount in excess of 15% measured from the close of business on July 7,
     2003;"

     (10) Section 14 is hereby amended by deleting the condition set forth in
          paragraph (d)(6) of such Section in its entirety and replacing it with
          the following:

          "(6) any change in the general political, market, economic or
     financial conditions in the United States or other jurisdictions in which
     the Company does business that could, in the reasonable judgment of the
     Purchaser, have a material adverse effect on the business, properties,
     assets, liabilities, capitalization, shareholders' equity, condition
     (financial or otherwise), operations, licenses or franchises, results of
     operations or prospects of the Company and its subsidiaries, taken as a
     whole, or cause a decline in the

                                        2


     trading price of the Shares in an amount in excess of 15% measured from the
     close of business on July 7, 2003,"

     (11) Section 14 is hereby amended by deleting the second to last paragraph
          of such Section in its entirety and replacing it with the following:

          "which, in the reasonable judgment of Parent or the Purchaser in any
     such case, and regardless of the circumstances (including any action or
     inaction by any party other than Parent, the Purchaser or any of Parent's
     affiliates) giving rise to any such condition, makes it inadvisable to
     proceed with the Offer and/or with such acceptance for payment or payment."

     (12) Section 14 is hereby amended by deleting the last paragraph of such
          Section in its entirety and replacing it with the following:

          "The foregoing conditions are for the sole benefit of Parent and the
     Purchaser and may be asserted by Parent or the Purchaser, regardless of the
     circumstances (including any action or inaction by any party other than
     Parent, the Purchaser or any of Parent's affiliates) giving rise to any
     such conditions or may be waived by Parent or the Purchaser, in its sole
     discretion, in whole or in part, at any time and from time to time prior to
     the Expiration Date (or thereafter in relation to any condition dependent
     upon the receipt of government approvals). The failure by Parent or the
     Purchaser at any time to exercise any of the foregoing rights shall not be
     deemed a waiver of any such right, each such right shall be deemed an
     ongoing right which may be asserted at any time and from time to time and
     the waiver of any such right in one instance shall not be deemed a waiver
     with respect to any other instance, provided that a waiver by Parent or the
     Purchaser in any particular instance shall be deemed a waiver in such
     instance with respect to all tendered Shares. Any determination by Parent
     or the Purchaser concerning any condition or event described in this
     Section 14 shall be final and binding upon all parties."

     (13) Section 16 is hereby amended by deleting the first sentence of the
          first paragraph of such Section in its entirety and replacing it with
          the following:

          "UBS Securities LLC is acting as Parent's financial advisor and the
     Dealer Manager in connection with the Offer. Parent has agreed to pay UBS
     Securities LLC up to $16 million: $4 million of which is payable within 30
     days following announcement of the Offer, $2 million of which is payable
     upon receipt of a fairness opinion, $150,000 of which is payable within 45
     days after the date of execution of the Dealer Manager agreement between
     the parties and the remainder of which is payable upon the consummation of
     the Offer or the Proposed Merger."

ITEM 12. EXHIBITS


           
 (a)(1)(A)    Offer to Purchase, dated July 9, 2003.*
 (a)(1)(B)    Letter of Transmittal.*
 (a)(1)(C)    Notice of Guaranteed Delivery.*
 (a)(1)(D)    Letter to Brokers, Dealers, Commercial Banks, Trust
              Companies and other Nominees.*
 (a)(1)(E)    Form of Letter to Clients for use by Brokers, Dealers,
              Commercial Banks, Trust Companies and other Nominees.*
 (a)(1)(F)    Guidelines for Certification of Taxpayer Identification
              Number on Substitute Form W-9.*
 (a)(1)(G)    Press release issued by ArvinMeritor, Inc., dated July 8,
              2003, announcing ArvinMeritor's intention to commence the
              Offer.*
 (a)(1)(H)    Press release issued by ArvinMeritor, Inc., dated July 9,
              2003, announcing the commencement of the Offer.*
 (a)(1)(I)    Summary Advertisement published July 9, 2003.*
 (a)(1)(J)    Complaint filed by ArvinMeritor, Inc. on July 8, 2003 in the
              Circuit Court for the City of Buena Vista, Virginia.*
 (a)(1)(K)    Complaint filed by ArvinMeritor, Inc. on July 9, 2003 in
              United States District Court for the Western District of
              Virginia.*


                                        3

(a)(5)(A)      Press release issued by ArvinMeritor, Inc., dated July 14, 2003,
               relating to supplemental disclosure requested by the Ohio
               Department of Commerce.*

(a)(5)(B)      Letter from ArvinMeritor, Inc. dated July 14, 2003, to Dana
               shareholders residing in Ohio, as posted on ArvinMeritor's
               website.*

(a)(5)(C)      Transcript of portions of ArvinMeritor's fiscal year 2003
               third-quarter earnings call, held on July 21, 2003, relating to
               the Offer.*

(a)(5)(D)      Press release issued by ArvinMeritor, Inc. dated July 22, 2003,
               responding to Dana Corporation's rejection of the Offer.

(a)(5)(E)      Text of ArvinMeritor, Inc. form of e-mail replies to investor
               inquiries and requests relating to the Offer.

(b)            Not applicable.
(c)            Not applicable.
(d)            Not applicable.
(e)            Not applicable.
(f)            Not applicable.
(g)            Not applicable.
(h)            Not applicable.

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* Previously filed

                                        4


                                   SIGNATURE

     After due inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Date: July 24, 2003

                                          DELTA ACQUISITION CORP.

                                          By: /s/ LARRY D. YOST
                                            ------------------------------------
                                              Name: Larry D. Yost
                                              Title:  Chairman of the Board and
                                                      Chief Executive Officer

                                          ARVINMERITOR, INC.

                                          By: /s/ LARRY D. YOST
                                            ------------------------------------
                                              Name: Larry D. Yost
                                              Title:  Chairman of the Board and
                                                      Chief Executive Officer

                                        5


                                 EXHIBIT INDEX



EXHIBIT NO.                           DESCRIPTION
-----------                           -----------
           
 (a)(1)(A)    Offer to Purchase, dated July 9, 2003.*
 (a)(1)(B)    Letter of Transmittal.*
 (a)(1)(C)    Notice of Guaranteed Delivery.*
 (a)(1)(D)    Letter to Brokers, Dealers, Commercial Banks, Trust
              Companies and other Nominees.*
 (a)(1)(E)    Form of Letter to Clients for use by Brokers, Dealers,
              Commercial Banks, Trust Companies and other Nominees.*
 (a)(1)(F)    Guidelines for Certification of Taxpayer Identification
              Number on Substitute Form W-9.*
 (a)(1)(G)    Press release issued by ArvinMeritor, Inc., dated July 8,
              2003, announcing ArvinMeritor's intention to commence the
              Offer.*
 (a)(1)(H)    Press release issued by ArvinMeritor, Inc., dated July 9,
              2003, announcing the commencement of the Offer.*
 (a)(1)(I)    Summary Advertisement published July 9, 2003.*
 (a)(1)(J)    Complaint filed by ArvinMeritor, Inc. on July 8, 2003 in the
              Circuit Court for the City of Buena Vista, Virginia.*
 (a)(1)(K)    Complaint filed by ArvinMeritor, Inc. on July 9, 2003 in
              United States District Court for the Western District of
              Virginia.*
 (a)(5)(A)    Press release issued by ArvinMeritor, Inc., dated July 14,
              2003, relating to supplemental disclosure requested by the
              Ohio Department of Commerce.*
 (a)(5)(B)    Letter from ArvinMeritor, Inc. dated July 14, 2003, to Dana
              shareholders residing in Ohio, as posted on ArvinMeritor's
              website.*
 (a)(5)(C)    Transcript of portions of ArvinMeritor's fiscal year 2003
              third-quarter earnings call, held on July 21, 2003, relating
              to the Offer.*
 (a)(5)(D)    Press release issued by ArvinMeritor, Inc. dated July 22,
              2003, responding to Dana Corporation's rejection of the
              Offer.
 (a)(5)(E)    Text of ArvinMeritor, Inc. form of e-mail replies to
              investor inquiries and requests relating to the Offer.
 (b)          Not applicable.
 (c)          Not applicable.
 (d)          Not applicable.
 (e)          Not applicable.
 (f)          Not applicable.
 (g)          Not applicable.
 (h)          Not applicable.


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* Previously filed