The Rear Bumper Is Manufactured Out Of 3/16" Cold Rolled Steel And Comes Standard With A Built In Class III Receiver Hitch And Two Solid D-Ring Mounts That Are Welded On The Inside And Out For Maximum Strength. Bumper Is Designed To Accept The Smittybilt Swing Away Tire Carrier #76654.The Swing Away Tire Carrier Can Be Added To The Bumper At Any Time.