I run 255x50x16 MT Drag radials on GTA (fronts) on the back with no problems. My car is lowered and I can't run more than about a 4" b/s. I tried 15x8 Weld wheels with 28x10x15 MT ET slicks and they hit the inside frame rail. Stock height may have cleared. Lot's of guys run them. I ran BFG drag radials for a while but the MT's are better.