Updated Specs: I am rebuilding a 400 engine from a '73. It will be a 4bbl w/ the Summit 2801 cam. The car has 2.78 rear gears. I would like to switch to 3.23 gears in the rear end, but that is only if I have the time/money. My car will be a street/cruiser machine. I will not be taking it to the strip. But I want to be able to stomp on it when necessary.
I am trying to make a decision on what tranny would be best in my 69.
The car came with a TH350 in it, but it needs some work.
With the rise in gas, I've been contemplating going with an overdrive tranny, but I can't decide 1) if I should, and 2) what transmission if I do.
With 2.79 gears, what is the best transmission (3 speed or overdrive)?
With 3.23 gears, what is the best transmission (3 speed or overdrive)?
If an overdrive transmission is the way to go, which type? 2004R or 7004R? Since my orginal trany was a TH350, I don't think I would need to cut my driveshaft if I went to a 2004R. But, I am concerned that the 2004R will not be strong enough.
