2005-2007 Polaris Ranger 500 service manual, Page 226Get this manual
FINAL DRIVE 6If tight spot is felt during rotation, loosen the backlash screw another 18 turnPerform the previous step againRepeat this procedure until the pinion shaft rotates smoothly times (1 revolution of ring gear)
Gearcase Installation
12To install gearcase, reverse removal procedure.Use new spring pin in front prop shaftTorque mounting bolts to 30 ft.lbs(41 Nm)