Duster shells all the same?

72bluNblu said
The rear cross member is only different because of the cut outs for the shock mount bumper, you can put an early bumper on the later cars just by either making patches for those openings, or making an additional set of bumper brackets. I put an early bumper on my '74 Duster, you can see what I did here http://www.forabodiesonly.com/mopar/showpost.php?p=1970342487&postcount=70

The tail panel is really the most labor intensive part of the swap.

The Tail Panel is shaped a little differently at the bottom on cars with Rear Bumper Shocks, a regular (Pre-Shock) Tail Panel fits, but will require 2 small sections of metal to grafted in to fill the gaps where the crossmember met up with the tail panel in the shock area.

Yeah the Tail Panel is a pain. There are 120+ Spot Welds holding a Duster/Demon/Dart Sport Tail Panel in place, I know, I've drilled em out on a few cars. Usually about 8-10 on each side where the quarter panel meets the Tail (There's 16-20 spot welds already). 3-4 on each side inside the Trunk Channel, underneath the Seal (There's roughly 24-28 spot welds). 4 on each corner at the top. You're up to about 36 spot welds total by this point. Trunk Latch Support, there's about 18 spot welds holding it to the Tail Panel & Trunk Floor. The rest of em (And there are a lot) are along the bottom edge of the tail panel, holding it to the Rear Crossmember.