The Whites Independent Rear Suspension A-Arm Kit is designed to replace worn out rubber bushings while providing additional suspension travel and greater performance. Constructed to meet and exceed OEM specifications and designed as an OEM replacement. The rebuild kits contain all of the bearings seals shafts and other components to repair A-arm failure. Each kit is designed to repair one A-arm two kits are required for a complete installation.OEM replacement kitImproves performanceOne kit required per A-armContains components for complete A-arm rebuildMeets and exceeds OEM specifications Fits: Polaris SPORTSMAN 550 X2 2010 SPORTSMAN 550 XP 2010 SPORTSMAN 850 TOURING EPS 2010 SPORTSMAN 850 XP 2010