SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   Form 10-K/A

                        AMENDMENT NO. 1 TO ANNUAL REPORT
                         PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                   For the fiscal year ended December 31, 1996


                          Commission File Number 1-2328




                                GATX Corporation


           Incorporated in the          IRS Employer Identification Number
          State of New York                       36-1124040



                             500 West Monroe Street
                          Chicago, Illinois 60661-3676
                                 (312) 621-6200
















                                AMENDMENT NO. 1
     
This Form 10-K/A is being  filed for the  purpose of adding  Exhibit 99D to Item
14(c) - Exhibits.

Item 14.  Financial Statement Schedules, Reports on Form 8-K and Exhibits.
- --------------------------------------------------------------------------

a)          1.        -Financial Statements

                      The following  consolidated  financial  statements of GATX
                      Corporation  included in the Annual Report to Shareholders
                      for the  year  ended  December  31,  1996,  are  filed  in
                      response to Item 8:

                      Statements of Consolidated  Income and Reinvested Earnings
                           -- Years ended December 31, 1996, 1995 and 1994
                      Consolidated Balance Sheets -- December 31, 1996 and 1995
                      Statements of Consolidated Cash Flows -- Years ended
                           December 31, 1996, 1995 and 1994
                      Notes to Consolidated Financial Statements

            2.        -Financial Statement Schedules:                     Page

                      Schedule I        Condensed Financial
                                            Information of Registrant..... **

                      Schedule II       Valuation and Qualifying Accounts. **

                      All other  schedules  for which  provision  is made in the
                      applicable  accounting  regulation of the  Securities  and
                      Exchange  Commission  are not  required  under the related
                      instructions or are  inapplicable,  and,  therefore,  have
                      been omitted.

b)    Current  Report on Form 8-K dated January 24, 1997 with respect to certain
      litigation filed against GATX/Airlog,  a California general partnership of
      which GATX Capital Corporation is a partner, and GATX Capital Corporation.
















- ----------------------
** Previously  included in Registrant's  Annual Report on Form 10-K for 1996, as
originally filed.


                                       -1-










c) EXHIBIT INDEX

Exhibit
Number                                                    Exhibit Description             Page
- ------                                                    --------------------            ----

                                                                                                                           
3A.               Restated Certificate of Incorporation of GATX Corporation,  as
                  amended,  incorporated by reference to GATX's Annual Report on
                  Form 10-K for the fiscal year ended  December 31,  1991,  file
                  number 1-2328.

3B.               By-Laws of GATX  Corporation,  as amended  and  restated as of
                  July 29, 1994,  incorporated  by  reference  to GATX's  Annual
                  Report on Form 10-K for the  fiscal  year ended  December  31,
                  1994, file number 1-2328.

10A.*             GATX Corporation 1985 Long Term Incentive Compensation Plan, 
                  as amended, and restated as of April 27, 1990, incorporated by 
                  reference to GATX's Annual Report on Form 10-K for the fiscal 
                  year ended December 31, 1990, file No. 1-2328.  Amendment to 
                  said Plan effective as of April 1, 1991, incorporated by 
                  reference to GATX's Annual Report on Form 10-K for the fiscal
                  year ended December 31, 1991, file number 1-2328; Sixth 
                  Amendment to said Plan effective January 31, 1997, submitted 
                  to the SEC along with the electronic transmission of this
                  Annual Report on Form 10-K.

10B.*             GATX Corporation 1995 Long Term Incentive  Compensation  Plan,
                  incorporated by reference to GATX's  Quarterly  Report on Form
                  10-Q for the  quarterly  period  ended  March 31,  1995,  file
                  number  1-2328.  First  Amendment of said Plan effective as of
                  January  31,  1997   submitted  to  the  SEC  along  with  the
                  electronic transmission of this Annual Report on Form 10-K.

10C.*             Management  Incentive Plan dated January 1, 1997,  file number
                  1-2328.  Submitted  to  the  SEC  along  with  the  electronic
                  submission of this Report on Form 10-K.

10D.*             GATX Corporation  Deferred Fee Plan for Directors,  as Amended
                  and  Restated as of October  25,  1996,  file  number  1-2328.
                  Submitted to the SEC along with the  electronic  submission of
                  this Report on Form 10-K.






<FN>

- ----------------------
*  Management contract or compensatory plan or arrangement  required to be filed
   as an exhibit to the Company's Annual Report on Form 10-K.
</FN>

                                       -2-













Exhibit
Number                                                       Exhibit Description          Page
- -------                                                      -------------------          ----         

                                                                                    
10E.*             1984 Executive  Deferred Income Plan  Participation  Agreement
                  between  GATX  Corporation  and  participating  directors  and
                  executive  officers  dated  September  1,  1984,  as  amended,
                  incorporated by reference to GATX's Annual Report on Form 10-K
                  for the fiscal  year ended  December  31,  1991,  file  number
                  1-2328.

10F.*             1985 Executive  Deferred Income Plan  Participation  Agreement
                  between  GATX  Corporation  and  participating  directors  and
                  executive   officers   dated   July  1,  1985,   as   amended,
                  incorporated by reference to GATX's Annual Report on Form 10-K
                  for the fiscal  year ended  December  31,  1991,  file  number
                  1-2328.

10G.*             1987 Executive  Deferred Income Plan  Participation  Agreement
                  between  GATX  Corporation  and  participating  directors  and
                  executive  officers  dated  December  31,  1986,  as  amended,
                  incorporated by reference to GATX's Annual Report on Form 10-K
                  for the fiscal  year ended  December  31,  1991,  file  number
                  1-2328.

10H.*             Amendment  to  Executive  Deferred  Income Plan  Participation
                  Agreements  between GATX and certain  participating  directors
                  and  participating  executive  officers  entered  into  as  of
                  January 1, 1990,  incorporated  by reference to GATX's  Annual
                  Report on Form 10-K for the  fiscal  year ended  December  31,
                  1989, file number 1-2328.

10I.*             Retirement Supplement to Executive Deferred Income Plan
                  Participation Agreements entered into as of January 23, 1990,
                  between GATX and certain participating directors incorporated
                  by reference to GATX's Annual Report on Form 10-K for the 
                  fiscal year ended December 31, 1989, file number 1-2328 and 
                  between GATX and certain other participating directors 
                  incorporated by reference to GATX's Annual Report on Form 
                  10-K for the fiscal year ended December 31, 1990, file 
                  number 1-2328.

10J.*             Amendment  to  Executive  Deferred  Income Plan  Participation
                  Agreements  between GATX and participating  executive officers
                  entered into as of April 23, 1993,  incorporated  by reference
                  to GATX's Annual Report on Form 10-K for the fiscal year ended
                  December 31, 1993, file number 1-2328.



<FN>

- ----------------------
*  Management contract or compensatory plan or arrangement  required to be filed
   as an exhibit to the Company's Annual Report on Form 10-K.
</FN>

                                       -3-












Exhibit
Number                                                      Exhibit Description           Page
- -------                                                     --------------------          ----     

                                                                                         
10K.*             Director's  Deferred  Stock  Plan  approved  on July  26,1996,
                  effective  as  of  April  26,  1996  1992,   Summary  of  Plan
                  incorporated by reference to GATX's  Quarterly  Report on Form
                  10-Q for the quarterly  period ended  September 30, 1996, file
                  number 1-2328.

10L.*             Agreement for Continued Employment Following Change of Control
                  or Disposition of a Subsidiary  between GATX  Corporation  and
                  certain  executive  officers  dated  as of  January  1,  1995,
                  incorporated by reference to GATX's  Quarterly  Report on Form
                  10-Q for the quarterly period ended March 31,1995, file number
                  1-2328.

10M.*             Agreements  for  Continued   Employment  Following  Change  of
                  Control  or   Disposition   of  a   Subsidiary   between  GATX
                  Corporation  and an additional  executive  officer dated as of
                  July 1, 1995 and between  GATX and another  executive  officer
                  dated as of January  1, 1996.  Incorporated  by  reference  to
                  GATX's  Annual  Report on Form 10-K for the fiscal  year ended
                  December 31, 1995, file number 1-2328.

10N.*             Agreement dated July 29, 1994, supplementing the Agreement for
                  Continued   Employment   Following   Change  of   Control   or
                  Disposition  of a  Subsidiary  between  GATX  Corporation  and
                  Ronald H. Zech,  incorporated  by reference  to GATX's  Annual
                  Report on Form 10-K for the  fiscal  year ended  December  31,
                  1994, file number 1-2328.

10O.*             Letter   Agreement  dated  August  17,  1993  between  William
                  Chambers  and  GATX,   incorporated  by  reference  to  GATX's
                  Quarterly  Report on Form 10-Q for the quarterly  period ended
                  June 30, 1995, file number 1-2328.

10P.*             Letter  Agreement dated May 31, 1995 between David B. Anderson
                  and GATX. Incorporated by reference to GATX's Annual Report on
                  Form 10-K for the fiscal year ended  December 31,  1995,  file
                  number 1-2328.

10Q.*             Arrangements between James J. Glasser and GATX associated with
                  Mr. Glasser's  retirement from GATX as described on page 11 in
                  the Section of the GATX Proxy  Statement  dated March 13, 1996
                  entitled  "Termination  of  Employment  and  Change of Control
                  Arrangements"  are incorporated  herein by reference  thereto,
                  file number 1-2328.

11A.              Statement regarding computation of per share earnings.                  **

<FN>

- ----------------------
*  Management contract or compensatory plan or arrangement  required to be filed
   as an exhibit to the Company's Annual Report on Form 10-K.

** Previously  included in Registrant's  Annual Report on Form 10-K for 1996, as
originally filed.
</FN>

                                       -4-








Exhibit
Number                                                     Exhibit Description            Page
- ------                                                     --------------------           ---- 

                                                                                                                           
11B.              Statement regarding computation of per share earnings 
                  (full dilution)                                                          **

12.               Statement regarding computation of ratios of earnings to 
                  combined fixed charges and preferred stock dividends.                    **

13.               Annual Report to Shareholders  for the year ended December 31,
                  1996,  pages 33-73,  with respect to the Annual Report on Form
                  10-K for the fiscal year ended December 31, 1996,  file number
                  1-2328.  Submitted  to  the  SEC  along  with  the  electronic
                  submission of this Report on Form 10-K.

21.               Subsidiaries of the Registrant.                                          **

23.               Consent of Independent Auditors.                                         **

23A.              Consent of Independent Auditors.

24.               Powers of Attorney  with respect to the Annual  Report on Form
                  10-K for the fiscal year ended December 31, 1996,  file number
                  1-2328.  Submitted  to  the  SEC  along  with  the  electronic
                  submission of this Report on Form 10-K.

27.               Financial  Data Schedule for GATX  Corporation  for the fiscal
                  year ended December 31, 1995, file number 1-2328. Submitted to
                  the SEC along with the electronic submission of this Report on
                  Form 10-K.

99A.              Undertakings  to  the  GATX  Corporation   Salaried  Employees
                  Retirement  Savings Plan,  incorporated by reference to GATX's
                  Annual Report on Form 10-K for the fiscal year ended  December
                  31, 1982, file number 1-2328.

99B.              Undertakings to the GATX  Corporation 1995 Long Term Incentive
                  Plan for the fiscal year ended December 31, 1995,  file number
                  1-2328,  incorporated  by reference to GATX's Annual Report on
                  Form 10-K for the year ended December 31, 1995.

99C.              Undertakings to the GATX Logistics Inc. 401(k) Cash 
                  Accumulation Plan incorporated by reference to the 
                  Form S-8 Registration Statement filed with the SEC on 
                  June 19,1996, Registration No.33-06315.


<FN>
- ----------------------
** Previously  included in Registrant's  Annual Report on Form 10-K for 1996, as
originally filed.
</FN>

                                       -5-










Exhibit
Number                                                     Exhibit Description            Page
- -------                                                    -------------------            ----

                                                                                    
99D.              GATX Logistics Inc. 401(k) Cash Accumulation Plan Financial 
                  Statements and Supplemental Schedules for the fiscal year 
                  ended December 31, 1996, file number 1-2328.  Submitted to 
                  the SEC along with the electronic submission of this Report 
                  on Form 10-K/A.











































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                                   SIGNATURES


Pursuant to the  requirements of Section 13 or 15(d) of the Securities  Exchange
Act of 1934,  the  Registrant  has duly  caused  this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

                                                      GATX CORPORATION
                                                        (Registrant)




                                            By:       /s/David M. Edwards
                                                    -------------------------   
                                                         David M. Edwards
                                                   Vice President Finance and
                                                      Chief Financial Officer

May 12, 1997





























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