i recently purchased a 5.7 liter vortec engine and a 4l60e transmission out of a 1999 2wd chevy 1/2 ton pickup. i plan on putting it in my 1986 k5. what do i need to look out for on a project like this. i have never attempted a project this complex. the biggest question i have is about wiring. i have the computer and the relay box, but how do i wire this all to the 1986 components. i understand i will need the wire diagrams for both trucks. are the diagrams from the chilton books appropriate or do i need to get the diagrams from the gm service manuals. also will the headers i have on my 1986 5.7 bolt up to the new engine ok? everybody's input on this will be greatly appreciated. oh one other thing will my 208 transfer case bolt up to the 4l60 ok or do i need to be looking for a new tranfer case?