72 Front Clip on a 75 Dart and hood?

On a ‘75 you’d want to look at how they did the front bumper brackets. The earlier cars use 2 bolts to mount the bumper brackets. The later cars with the shock mounted bumpers (like the ‘75) only use one bolt, and that bolt is not in the same place as either of the earlier ones. So mounting the earlier brackets requires some fabrication. The right way to do it would be to add captured nuts inside the frame rail, but that’s not the easiest way. So I’d look and see how that was done if I was looking to buy a converted car.

The rest of the stuff- fenders, hood, front valance, grille, hood latch support, etc just bolt on, so it’s only a matter of having those parts to install.

Was the tail light panel and rear bumper changed as well? Or does it have the ‘75 rear bumper and tail lights? That swap also requires a decent amount of welding and panel swapping.