Well I got a big surprise today! I went back to look at the 1 owner truck with 4. 10 gears and found out they were 3. 54's!!!! The guy that is selling it just thought they were 4. 10's, but the underhood option code sticker had been removed and was stuck in the glovebox. Sure enough, it was 3. 54's. He was saying at 65 he was turning close to 2000 rpms, so that should be right. I confirmed by a test drive too. So I bought it and should have it home by tomorrow, after a trip to the bank!