anyone know what these seats are out of? and are the seat mounts different from an 89 reg cab with an auto from a 90 model reg cab with a 5 spd? these came out of my parts truck and i threw them in my 89 but i can only get 2 bolts in because the seat is to wide. whats the deal? i think that all 4 bolts were bolted in on the 90 but i may be very wrong. haha. my memory doesnt work to well sometimes.