Rear seat compatibility

I have a seat that looks to be out of a 71-2 or so Dart swinger, the hooks on the floor of m 71 duster are in different place, and I believe the top hooks different so I bet the previous comment is correct we both need rear from duster, demon, of dart sport! I might be physically the same but I will not start cutting and welding to make fit anyway, this swinger seat is mint, I need to find it a new home!!!