Well im starting to cut the rear of the burban and making it a truck bed. Now if i just cut if off behind the rear doors it would be like a 5 and a half foot bed. I would like to make it a 6 foot bed- by just adding like a half of foot of bed, that would be pretty easy. But i would also have tomake the frame a lil longer and that would be a lil tougher but i think i could do. And then flipping the rear 56" springs around so it would move the axle back a few inches- and i know i would have to move the gas tank back but if i make the frame longer that would give me the room i need to do that to. And im gonna either build or mod the tailgate to fit behind the rear seats so i would have the rear sliding window right there i think that would be pretty darn nice. Here is what i would like mine to look like.