2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 239Get this manual
FINAL DRIVE Inspection
NOTE: The following procedure applies to BOTH inner and outer CV jointsCheck the front and rear driveshaft CV boots for any tears or leaking greaseIf the driveshaft boot loses all of the grease CV joint failure will occur2Remove cotter pin and castle nut from A-arm ball jointDisconnect A-arm from ball joint using tie rod fork