2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 405Get this manual
REAR DRIVING MECHANISM
REAR AXLE INSTALLATION
Apply molybdenum disulfide grease to the center splines of the axleInstall the axle into the final drive gear case from right side until it is fully seatedREAR AXLE
CENTER SPLINES
Coat new O-ring with grease and install it into the groove in the gear caseInstall the side collar onto the rear axle with the tapered side facing inwardO-RING
SIDE COLLAR Install the left axle housing with four new nuts, and tighten the nutsTORQUE: 44 Nm (4.5 kgfm, 33 lbfft) Install the left rear shock absorber into the axle housing and tighten the lower mounting boltTORQUE: 44 Nm (4.5 kgfm, 33 lbfft)