Yeah the Duster/Demon/Dart Sport body is way easier. You can run 275's with no modifications to the spring locations or quarters at all if you get the backspace right. I test fit a set of 275/40/17's on 17x9" rims on my Duster before I did any of the rear suspension mods, they fit fine. I run 295's now on 18x10's with the 1/2" spring offset and a trimmed quarter lip, and my car sits pretty low so there's more room to the quarter than a lot of folks run. Roadkill's duster has less room to the quarter than I do by a lot, although I would suspect they'd get rubbing with their combo if they did anything other than drive in a straight line with an empty back seat. Pretty sure they don't care though.