Access Mud Flaps A10201021 ROCKSTAR(TM) mud flaps are the best fitting hitch mounted mud flaps! The unique model specific design features a custom fit aluminum frame with stabilizer plate, stainless steel hardware and 1/2" rubber flaps. ROCKSTAR" Mud Flap XL ROCKSTAR" Mud Flap XL; Diamond Plate; Trim To Fit Rubber; Access Rockstar XL 19+ Chevy Full Size 1500 Diamond Plate Finish Hitch Mounted Trim To Fit Mud Flaps