Rear Independent Suspension Bushings Kit Polaris Ranger 500 4x4 2006 2007 2008 Kit Contains: (12) Delrin Bushings Please note: This kit is for Independent A-Arms Only. The bushings will replace one rear upper and lower a-arm including the knuckle. If you'd like to repair the a- arms on both sides of your machine, please order 2 kits.