Kits contain all of the components required to rebuild the upper and lower A-arm and knuckle;Needle bearing shafts are made with 52100 bearing steel that has been hardened and precision ground;Self-lubricating acetal nylon bushing for better wear and performance;All metal bushings are case hardened and plated to prevent wear and corrosion

• QuadBoss IRS Knuckle Only Kit - --
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QuadBoss IRS Knuckle Only Kit - --QuadBoss