Hello,

Why do the 1954 Chevy 1/2 ton Truck front and rear torque tube propeller shaft bushings and oil seal have different outside dimensions?
Does the internal dimensions of the torque tube housing decrease or narrow as you go farther down the torque tube housing?

Front bushing: O.D.--1 51/64"
Rear bushing: O.D.---1 49/64"
Oil seal O.D.----------1 23/32"

Spec in Master Cat. 1929-1954
bushings link
oil seal link
Cut away view bottom of page.

The reason I ask is I measured my Okie bushing and it has the same O.D. front and rear.

Any Ideas Appreciated.

Thanks,