out of curiosity, do certain A-Body cars share the same inner wings? Ie Duster and Valiant of the same year, Dart and Valiant of the same year? Is it just the exterior panels which differ?
If so, than yes. The inner fender is interchangeable from any A-body of a given year. And realistically, they’re interchangeable from any A-body 67-76. There will be some year specific changes, like when the “bump” was added to the passenger side inner fender for the charcoal canister etc. But any A-body will fit, and any A-body from the same year will be “correct”. Most of them would be correct for at least a couple years.