JD,

I'd look for another SM420 out of a 1/2 ton- it will hook right up to the torque tube. My '52 1/2 ton has one, which was obviously a replacement for the original 3-speed. You could probably trade your current 420 for the 1/2 ton style.

Tyler


1953 3600 Pickup
1946 Fleetline Aerosedan
1948 Hudson Commodore