700r4 into an LS1
It will work with the stock rear fine...It will probably fall flat on it's face in 3rd gear, but all 700r4's have that problem too. Never wants to hit 3rd hard either.
I don't know about the driveshaft. 4l60E is pretty much an electronic 700, but it still may have different dimensions.
Trending Topics
Do this math here--rear gear x trans ratio (.7 for 700R4 and 4L60E) x 336 (locked converter) x 80 (mph) / tire hieght = RPM.
As for the spline count you want a 30 spline input with a matching converter.
27 spline would be 1984 1/2 down to 1982, you don't want one of those and they're getting hard to find anyway.
The Best V8 Stories One Small Block at Time


