When you ask what will fit? The rear seats for all E-body's are the same except for convertibles. The front seats are interchangeable also but with minor differences like different styles of bucket seat backs 70-72 and no seatback on 73, just upholstery front and back of front seat. Seat back release handles differ through the years but you can put any year seats into any year E-body with no fitment issues, just appearance.