2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 209Get this manual

Quality of the image is intentionally reduced!
FINAL DRIVE 7 Torque the wheel hub castle nut to specification and install NEW cotter pinTighten nut slightly if necessary to align cotter pin holes80 ftlbs(108 Nm)
Wheel Hub Castle Nut: 80 ftlb