cab specifications

[geasson]

I need some specifications on cabs for 60 to 66 GMC. I am trying to buy a 1960 B-model and would like to take that cab and put it on a later model chassis and put a conventional cab back onto the truck. I know some will disagree with my plan, but the B-model is my favorite GMC.

I know that a B-model is 90 inches from bumper to back of cab. What is that dimension for a conventional cab?