1965 frame and cab mount

[nateshrek]

Hey guys,
Things are lining up and I've got a 1990 Cummins lined up to try and drop my 1965 step side short bed onto. Now I'm just trying to gather as much information on doing the swap as possible, beings I've never done anything like this before lol. What I'm hoping for is as much information, dimensions, personal experience, and anything in regards to mounting the cab and body onto the dodge frame as possible. The stock information about the GMC is what im looking for. Pictures and diagram would be GREAT!!!

Thanks for your time and wisdom guys.
Nate.