Access Mud Flaps A10400121 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; Hitch Mount; 18.5 in. x 37.88 in.; Access Rockstar 09+ XL Ram 1500 Mud Flaps