2010 Polaris Sportsman 850 Service Manual, Page 262Get this manual
FINAL DRIVE Gearcase Installation (TOURING Models)
1Install the rear gearcase by reversing the "Gearcase Removal" procedure at the beginning of this sectionRefer to the following installation steps for torque specificationsInstall the gearcase through-bolt mounting fasteners and torque to specification7Install the propshaft coupler onto the rear gearcase pinion shaft splinesInstall the lock washer and retaining nut
NOTE: Orientate the lock washer as shown with the tooth surfaces contacting the nut and couplerNut Cam Surface Tooth Surface Coupler
NOTE: Use the longer bolts (150 mm) in the top and the shorter bolts (125 mm) in the bottom
Gearcase Mounting Fasteners: 40 ftlbs(54 Nm) 3Install the right rear drive shaft into the gearcase and the upper A-arm onto the bearing carrierTorque the bearing carrier through-bolt fastener to specification8Lock the brake lever and torque the propshaft coupler retaining nut to specification
Coupler Retaining Nut: 90-110 ftlbs(122-149 Nm) 9Install the rear propshaft and torque bolts to specification