GM Full Size Vans 1987-1997 Repair Guide

Transmission

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See Figures 1 and 2

The Muncie 3-speed manual transmission serial number is located on the lower left side of the case, adjacent to the rear of the cover.

The New Process 4-speed transmission is numbered on the rear of the case, above the output shaft.

The Muncie 117mm 4-speed transmission is numbered on the rear of the case, above the output shaft.

The NVG 4500 5-speed transmissions are numbered on the top, left side of the case, near the bell housing.

The Turbo Hydra-Matic is identified by a plate attached to the right side, which is stamped with the serial number.



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Fig. Fig. 1: Transmission identification number location - Hydra-Matic 4L60-E



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Fig. Fig. 2: Transmission identification number location - Hydra-Matic 4L80-E

 
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