Jay,
I am already running a S10 trans in my 52 Chevy and I love it, with one exception, the 4.03 is a little steep, I have to shift out of 1st gear rather quickly with it.

I just found another T5, this one is from an 84 Camaro with the 2.95 first gear I want, but it has the 0.73 5th gear. With my 3.42 rear end, the current overdrive gear is at 0.86 and is perfect. My RPM drops to 2,000 at 65 MPH and I still have enough power to pull decent grades without shifting.

I am thinking (dangerous for me) that I would like to keep the 0.86 gear if possible when I convert the tail shaft over to the new V8 trans. Can I use the 0.86 gear? Or is it not that simple?

Thanks, Jim