If it's original to your pickup it's 4:11. There are lots of options here, I tossed my torque tube rear long time back for open drive line. Went with 57 half ton rear but only 3:90 now stepped up to a 3:08 from a 66 pickup. Best thing about losing the torque tube though is ability to get to a modern trans.


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