The WW II trucks were "fitted" at the factory. TIMKEN was the supplier for GMC, When TIMKEN could not keep up with production, GMC used a "corporate axle" also refered to as as a BANJO axle. TIMKEN's were a "split" axle. The TIMKEN axle was a better axle in the sense that it had finer tolerances.
All Chevy trucks along with DUKW used the BANJO axle.
GMC CCKW and DUKW used a CLARK 5 speed tranny and CHEVY used a coporate 4 speed tranny. GMC's with the TIMKEN axles also used a TIMKEN transfer case. You cannot use a BANJO trasfer with a TiMKEN axle as the rotation of the driveshafts coming out of the transfer case is differant
TIMKEN also was the WW II axle supplier to Diamond T, Ward LaFrance, Corbit, Kenworth, Federal. MAck made ther own in house.
1942 G5106 1.5-ton Chevy cargo dump Gallery pageOld Dominion Stovebolt Society T/Sgt. Gott (28 years of service with the USPP) 1940 Chevy G506 4112 cargo dump 1942 Diamond T G509 969A 4 ton wrecker 1942 Ward LaFrance G116 series 2 10 ton wrecker 1944 Ward LaFrance G116 series 5 10 ton wrecker 1931 Ford AA with a WEAVER crane 1944 Sterling HC 165 tractor 1944 Autocar U7144T w/ 10 ton trailer
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