Rear, 71 and 72 are the same with bolt on arm rest pads. 73/74 have molded in pads.74 has has the shoulder strap retract behind the panel.If you want a panel to cut holes in instead of destorying a good one buy a cheap pair of the repo half ass looking ones. There are two companys that make panels, their vacume formed so their not very good but to cut up who cares. I don't remenber which one is the better looking but one is a whole lot better than the other. I would use if i just couldn't find anything else.