The 76 Dart and Duster were Abodys, the last huraa for the Abody platform. The Fbody front suspension was a popular swap in the late 70s and early 80s but it was more for fat fender street rods and pickups than unibody cars. I've never seen a swap in a unibody car. The Abody is quite a bit narrower than an Fbody, in fact the Fbody is wider than the earlier Bbody if I remember correctly. But I still laugh at the advertising of the time calling it a compact car. Some of the 76 Abody cars if not all got aluminum hoods and deck lids, I had a friend in school that got a Feather Duster for graduation.
Mopar used the Duster name in 79 as a trim package on the Volare Coupe.