2008 Polaris Ranger RZR Service Manual, Page 230Get this manual
FINAL DRIVE Gearcase Assembly
1Install new input shaft seal using standard seal installer or other suitable method3If removed, install each axle spool bearing race using standard bearing installation tools and shop pressInstall new seals on each side of the gearcase housing using standard seal installer or other suitable methodInstall new o-ring in the gearcase cover