Access Mud Flaps A1040021 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 ROCKSTAR" Mud Flap; Smooth Mill; Hitch Mount; 21.5 in. x 24 in.; Access Rockstar 09+ Ram 2500 and 3500 Mud Flaps