Khiro Barrel Bushings (per truck) A new generation of specially compounded urethanes. Giving you the smoothest ride, fast rebound, quick action bushing you've asked for. Sold in set of two bushings -- (top and bottom) enough for one truck. Available in 7 durometers: White X-Soft (73a) Orange (79a) Blue Soft (85a) Red Med-Soft (90a) Yellow Med-Hard (92a) Black Hard (95a) Purple (98a)