As many of you know, I’ve been working on my 1946 1/2 truck, replacing the u-joint and now the clutch assembly. However, I am finding my truck may be a blend of many different years and parts. I know it has an earlier u-joint setup, from 1939 or earlier.

My pinion shaft inside the enclosed drive is a 17 spline. Does anyone have any idea what this came from? Every yoke or shaft I see in line has the 10 spline configuration. Any idea what year or kind of differential and enclosed drive I have?
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IMG_2925.jpeg (133.62 KB, 77 downloads)
IMG_2928.jpeg (215.79 KB, 77 downloads)
IMG_2917.jpeg (340.27 KB, 77 downloads)

Last edited by Dltalfa; 07/11/2023 2:54 AM.
Care taker of a 1946 1/2 ton. Pretty much period correct original. Danny T, from B’ham, Al