Don, I posted a tech tip on using this torque tube in my 46, check that out. Not sure on the length, but there should be lots of Chevys in Orange Co to measure. As I remember there was quite a bit of spline area at the U joint for fore and aft adjustment. Back when I did this swap it really was trick as the 3:55 gears really worked super in the truck. So you'll want a donor rear end from a powerglide car.


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed