I've done the swap on my 46 1 ton. Not really too hard and the original bell housing in your year might be more compatible than later years.

My SM 420 runs quiet and smooth, no whines. There is a lot of info available on rebuilding these things and parts are not real hard to find. They are also easy to rebuild if you are so inclined.


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