Howdy! I have a 1954 3100, 3 speed, torque tube driveline. For sundry reasons I would like to convert to the SM420 transmission, which was an option originally for that truck. Herein lies my question: if I find a tranny made post 1955 for an open driveline truck, can it still be made to work with my torque tube rear? I have heard that the tailhousing from my 3 speed (the piece that bolts to the driveline) is interchangeable with the SM420; does anyone have the experience to say this is true?
Thanks!
-Curtis
