For carrying the oversize tires that serious off roaders require, the rear bumper is available in a version that is designed to accept the Warn tire carrier. Built to carry heavier tires (up to 37 Inch), the tire carrier pivots on a beefy 1-1/2 Inch Solid Steel Shaft Pin, which comes up from within the bumper into the frame of the tire carrier. The shaft itself is welded, not bolted. Structural T Joint welds (VS corner welds) mean the bumper holds up in the long run. Period. A polyurethane pad reduces rattling. Includes frame reinforcing brackets.