Exhibit 11A

                        GATX CORPORATION AND SUBSIDIARIES


               COMPUTATION OF NET INCOME PER SHARE OF COMMON STOCK
                          AND COMMON STOCK EQUIVALENTS

                      In Millions, Except Per Share Amounts

                                                           Three Months          Six Months
                                                           Ended June 30        Ended June 30
                                                          ---------------      ---------------
                                                           1997     1996        1997     1996
                                                          ------   ------      ------   ------


                                                                              
Average number of shares of   
  Common Stock outstanding ............................     21.4     20.2        20.9     20.2

Shares issuable upon assumed exercise of stock options,
     reduced by the number of shares which could have
     been purchased with the proceeds from exercise
     of such options ..................................       .4       .3          .4       .3
                                                          ------   ------       -----    -----

Total shares ..........................................     21.8     20.5        21.3     20.5
                                                          ======   ======       =====   ======



Net income ............................................   $ 30.2   $ 25.7      $ 61.4   $ 50.4

Deduct - Dividends paid and accrued on
     preferred stock ..................................      3.3      3.3         6.6      6.6
                                                          ------   ------      ------   ------

Net income, as adjusted ...............................   $ 26.9   $ 22.4      $ 54.8   $ 43.8
                                                          ======   ======      ======   ======

Net income per share ..................................   $ 1.23   $ 1.09      $ 2.57   $ 2.14
                                                          ======   ======      ======   ======

<FN>


Note:    In February 1997, the Financial Accounting Standards Board issued 
         Statement No. 128 (FAS 128), Earnings per Share, which is required to
         be adopted on December 31, 1997.  At that time, the Company will be 
         required to change the method currently used to compute earnings per 
         share and to restate all prior periods.  In addition to changes in the
         computation, the terms "primary" and "fully diluted" earnings per share
         will be replaced with the terms "basic" and "diluted," respectively.
         Under the new requirements for calculating primary/basic earnings per
         share, the dilutive effect of stock options will be excluded.  The
         impact is expected to result in an increase in primary/basic earnings
         per share of approximately $.03 and $.02 per share for each of the
         quarters ended June 30, 1997 and June 30, 1996, respectively.  The
         impact of FAS 128 on the calculation of fully diluted/diluted earnings
         per share for these quarters is expected to result in no change.

</FN>


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