Access Mud Flaps A10100513 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 3XL ROCKSTAR" Mud Flap 3XL; Smooth Mill; Hitch Mount; 17..5 in. x 47 in.; Access Rockstar 15+ 3XL F-150 Mud Flaps