i put a 90 extra cab on my 87 SAS 4runner frame. you have to shave the bucket for the rubber bushing off the rear body mount, totally redo the third mount, and put a 2 inch bodylift puck on the front 2 mounts. gas tank fill hoses arent in the same spot on the tanks either, i put my tank all the way to the rear under the flatbed and tied in a second stock hardline(efi)...