Hey all. If there is one word of advice I could give folks thinking about a frame swap, is to compare the frame rises. My 51 GMC 1/2 ton had a really flat frame, so the cab and bed sat on the same level. More or less. When I mounted the body onto its new frame, I had to account for an 11 inch rise over the rear axle. I literally had to add an 11 inch substructure to get the cab and bed on the same plane. So take this into consideration when your frame shopping. You can see the truck here:

http://www.geocities.com/pickinjim1/Jims51truck.html