Rock rear tire carrier for Jeep TJ, CJ, and YJ. If you already have the BDO rear bumper on your Jeep, then it is a simple upgrade to our tire carrier. Carrier easily bolts on for your spare. Uses 1 inch double bearing hub with an open lock. Catch is a chamfered screw pin for a life of rattle free use. Tire mount is adjustable in an out for various widths. Comes powder coated and zinc plated.