2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 396Get this manual
REAR DRIVING MECHANISM
REAR FINAL DRIVE INSTALLATION
Apply molybdenum disulfide grease to the rear drive shaft splines and seal lipsInstall the drive shaft into the swing arm, while aligning the splines of the drive shaft and universal jointInstall the spring into the drive shaft
Coat new O-ring with grease and install it into the
rear final gear case grooveApplyof molybdenum disulfide grease to the rear final gear pinion joint splines