Bolt A-20931 has been obsoleted and 1s replaced by bolt A-20953. This bolt is 1/6” longer than the A-20931 bolt. (See Fig. 928.)

When using an A-20953 bolt in place of A-20931 bolt on cars having forged type transmission main shaft bearing retainers (A-7085-BR), it is necessary to take up the extra length of the A-20953 bolt in order to insure cotter pin hole lining up properly. This can be easily done by placing washer A-22257-52 under the head of the bolt.

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