When I upgraded to an SM 420 Transmission from the old original, I found the bolt holes for the trans did not line up and the pedal mounting holes were not there. I don't know what year all four speeds were upgraded or exactly when the pedal system changed and nothing about three speeds, but it is big a consideration when upgrading. I didn't have any problem with the engine mounts.


1946 1-ton Panel
1952 1-ton Comml. W/Grain Body