Cab Swap, Will it work?

[bodyman922]

Hi my name is Kyle. I am new to the forum and I have a question for you all. Ilive in southern Minnesota and have recently purchased a 1976 GMC 1/2 ton 4x4 truck for plowing snow. The body is very bad on it and everything needs to be replaced. My question is: If I were to find a cab off a larger truck say 2 ton 73-87 will it bolt onto the body mounts for the 1/2 ton frame? The reason I would like to use a 2 ton cab is to get the small rear window and make the truck a little more custom. Any help would be greatly appreciated. Thanks