[David_Hayward (RIP)]

Chevrolet CMPs had conventional "banjo type" differentials so-called because they were accessible from the front with an oval cover plate that reminds of the banjo instrument. These were produced by The McKinnon Industries Limited in St. Catherines, Ontario in a factory announced April 1932. The differential was a fully floating hypoid design.

The Fords had a Timken-type differential, as it was either produced by or copied from, a Timken Axle Corporation, Detroit (Timken-Detroit) design. Tinken-Detroit also supplied axles for US-built GMC, Chevrolet and Oldsmobile trucks. This design split vertically hence "split-type" axle, and the differential was a fully floating spiral design.

However, some 4 x 4 Fords used Chevrolet front and rear axles, as you can see from the photograph, although the 4 x 2 Chevrolets and Fords used a Reverse Elliott I-Beam [possibly standard Chevrolet or Ford design], with a fully floating hypoid rear axle (banjo) and fully floating spiral rear axle (split-type) respectively.

In addition, 47 1941 Model Ford F.15A 4 x 4 trucks had a GM banjo-type rear axle and Ford split-type front unit.

Ford used Rzeppa design steering Universal Joints and axle shafts and these were interchangeable with the Bendix-Weiss versions uded on Chevrolets, but in 1940 it was agreed that right-and left-assemblies of the same type should be fitted rather than left and right of each design.