2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 279Get this manual
TRANSMISSION
TRANSMISSION INSTALLATION, CONT6Install brake disc and washer with domed side out, against nut7Install caliper, auxiliary brake master cylinder, and transmission shift linkage rodsInstall left and right hand shock absorbers8Apply brake and torque disc nut to 45 ftlbs9Install PVT systemRefer to PVT section for procedure10Install airbox assembly and transmission vent lineBe sure vent line is not kinked or pinched11Add Polaris Premium Synthetic Gearcase Lubricant to the proper level on dipstick(Approximately quart)Do not overfillPremium Synthetic Gear Case Lubricant PN 2871478 (12 oz PN 2871477 (Gallon)