Originally Posted by tclederman
If you have the original 1954 1/2 ton rear end, it is a 3.90

http://chevy.oldcarmanualproject.com/chevyresto/54132.htm

The rear engine support is under the clutch housing, which was changed in 1954.
Ok good to know, not sure where I got 4.11. Thanks for posting that link. So it looks like my options are a 3.55 with the stock axle, or a 3.38 if I change out to a 55 or later axle. My 54 is actually a 4 speed also. Are torque tubes really that bad? I hear horror stories about them but if you take care of them and have a good seal after the u joint to keep oil in the tranny would they not be a reasonably reliable set up?