The All Balls IRS A-Arm Kit is designed to replace worn out rubber bushings and give greater suspension performance. A-arm shafts are manufactured with 52100 heat-treated bearing steel for improved performance and extended life. Notes: All A-arm bearing and seal kits come per arm; buy 2 to cover both sides. Sample kit shown; kit contents may vary by fitment and are subject to change. Kit Includes: 6 needle bearing shaft(s). 12 Delrin bushing(s). 4 washer(s). 2 bolt kit(s).