If it was chosen as an option in the 1/2 ton. Prior to the extinction of the torque tube, about 54-55 right?
Standard in 3/4 ton which used a short enclosed forward shaft and then open rear shaft.
Info/parts in the regular parts catalogs.


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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