I am going to change my seat covers in my 72 Swinger and I am leaning toward the 72 Duster, Demon pattern for the fronts and backs. I am getting new foam for the front buckets, which are not original to the car, but will there be a fitment issue with the back seats? It looks like they are the same from Dart Swinger to Duster but I am not sure. Any comments are greatly appreciated. Thanks.