Well is what I am planning to to do with my $300 75 Jimmy is to remove the body and install an 85 GMC cab on the K5 frame, because the body on the Jimmy is just not worth repairing. I can get the whole p/u for free. The 85 is a 2wd so I was told that I have to install a body lift clear the t-case. Well if that is true which one do I buy? The one for the 85 P/U or the 75 K5? Im not sure if I am shortening the bed or building a flat bed, but I like the idea of a really short bed p/u. thanks for the help.