37-41 rear end in a 32??

im currently putting a 37-41 rear end in my 32 5w project doesnt anyone know exactly how much i need to shorten(or an over al length) the torque tube? any help would be appreciated. i dont have a stock rear to go off of.

thanks rich

 

Anyone?

 

I put a '41 Columbia in my '32 with a stock '41 rear spring, custom driveshaft and a shortened '36 torque tube. Unfortunately, I didn't keep a record of the details, but I'll try and get under there and get a measurement on the torque tube and post what I find.