I have a 3.73 rear in my 81 and was thinking of changing the transmission to a 4 speed auto from a 82. I wanted to know if this is just a bold in swap and if any other changes would have to be made. I was thinking of this so that the RPMs would be less when crusing at highway speed.
Vette(s): 1978 Silver Anniversary model. Original L82 engine, 700r4 trans, edelbrock intake, thorly headers, rack&pinion steering, mono rear and front spring, MSD 6A box
When I changed my 78 from the TH350 to the 700r4 I had to do all that was said above and also move the E brake bracket over to clear the longer transmission. Belive me you will be glad you made the change. You will realize a big improvement in your gas mileage.
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