I used a third row seat out of a later 90(96?) Astro van. It is the right width and height (I think) and there are no headrests. Also, if you steal the center lap belt off the 2nd row seat you have a set of lap belts too (just moved them out, there are mounts already back there). There are a lot of colors out there, Some even have sliding frames. The only only modification necessary to the seat was to cut the removable seat latch hardware off. I also removed the trucks stock seat frames because I didn't like the way they look with aftermarket seats, and reinforced the floor where I bolted the new seat in. My only complaint is that the release to tilt the seat forward is on the passenger's side. Pic's of my truck are here if you want to see what the seat looks like
http://photos.yahoo.com/Tallguy2088 I like the Tahoe seats too, plus the newer ones have the shoulder type seat belts built in. I may go that way later...mmmm...leather...
