2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 350Get this manual
REAR DRIVING MECHANISM 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
Install the rear final gear assembly onto the swingarm with four new nuts, and loosely tighten the nutsConnect the breather hose to the hose joint of the gear case
N BREATHER HOSE