URETHANE BUSHINGS, COUPLERS & STOPSThe strength and durability of Urethane will out-last and out-perform standard rubberproducts in every application. From Shift Couplers to Bump Stops, install Urethaneand never look back! All urethane is red in color except where noted.16-5140 - URETHANEAXLE BEAM BUSHING KIT,INNER &OUTER, FOR KING & LINK PIN W/ BEARINGS, 4 PC