What year is your Jeep? I think starting in 2013 they came trimmed from the factory. I wouldnt think it would be an issue on 33s, but could be wrong.
2014 JKR Granite Crystal, 4.10 Auto
MY MALLCRAWLER: RK X Factor 2.5 Inch Lift, Artec Front and Rear Truss, Artec Rear LCA Mounts/Skids, Poison Spyder HD Crossmember, Rock Hard Gas/TC/Evap/Oil Skids, Nitto Trail Grapplers 37x12.5x17, Pro Comp 97 Series Wheels.