GM Corvette 1963-1982 Repair Guide

Identification

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See Figures 1, 2, 3 and 4

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Fig. Fig. 1: The automatic transmissions can be identied by the shape of the fluld pan-Powerglide transmission shown



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Fig. Fig. 2: Fluid pan shape on Turbo Hydra-Matic 350 ...



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Fig. Fig. 3: ... and 400 transmissions



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Fig. Fig. 4: View of the 700R4 automatic transmission fluid pan pattern

The two speed Powerglide transmission was used in the Corvette from 1963-67. From 1967-77, either the Turbo Hydra-Matic 350 (TH350) or the TH400 is used. In the years of 1978-81, the TH350 was the only available automatic transmission. In 1980 (except California models), an electrically controlled locking torque convertor was introduced to improve fuel economy. All 1981-82 models have this feature. In 1982, the TH700R-4, four speed automatic transmission was the only transmission available in the Corvette. Identification of most transmissions can be made by the shape of the oil pan.

 
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