I have the chance to purchase the rear end and possibly the whole drive train out of a 1946. I would be putting it into my 1937. The 46 has the 3:55 gears in it already which is why I would be looking to use. How compatable is the 46 rear end with my 37? I'm not afraid of a little work to get what I want, just want to know what I would be getting myself into.

Thanks for the help,
Charlie