i have the aluminum steeda upper & lower's on mine and have had no clearance issues. i'm running a 245/45 17" tire. they really made a positive difference in the way mine handles, rides, and hooks off the line. i can HIGHLY recomend the steeda stuff. i also have a set of the steel UPR tubular upper & lowers on my '83 GT. they made a world of difference in that car, too. they helped it hook better and virtually eliminated the wheel-hop i experienced with the stock stuff. the UPR set was significantly less expensive as well. the UPR uppers would probably give you a little more clearance secondary to the tubular design.