2006 Honda TRX680 Rincon Factory Service Manual, Page 407Get this manual
REAR WHEELSUSPENSION Apply molybdenum disulfide paste to the pivot bushing in the shock absorberConnect the knuckle to the shock absorber with the pivot collar and install the seal caps over the dust sealsSHOCK ABSORBER!
Coat new O-rings with molybdenum disulfide grease and install them into the pivot bolt groovesApply molybdenum disulfide grease to the bolt head (between the O-rings)