Rear seat compatibility

The Dart seats even differ through the years. My '69 has '70 Dart seats in it, front and rear. The front bench is okay, the seat back release is just in a different location. The back fits, the bottom is okay, but the seat back , though it fits, the top hooks in , can not attach the bottom. So the seat bottom holds the seat back in place. It works for now. So this is what you may encounter with different years.