of fenders with compound curves; used the International Red Diamond 450 engines instead of the Hercules 160AX; used IHC Model 1856 4-speed transmissions instead of the Spicer 4-speed transmissions; had IHC Model FOK-1370 front drive axles instead of the Timken; used IHC Model RHT-1590 axles in the rear instead of the Timken; and were constructed with fully welded armor with rounded rear corners instead of the bolted armor with square corners.

were also produced under license in Canada, and were widely supplied under the Lend Lease