No but my car is stock ride height. If you lower it then inner fenders will have to be beat in slightly and the quad shocks flipped. It is not a major ordeal. Well worth the added rubber and killer looks. I would imagine the quality of your rearend bushings will also play into whether or not you have rubbing.
Would I be able to run deep dish 17"-10.5 mickey Thompson rims with a 315/35 on a 94 GT with a 460 stroker in to I am having trouble hooking up with the 245 on it now