2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 344Get this manual
REAR DRIVING MECHANISM Apply grease to new oil seal lipsInstall each oil seal with the flat side facing out until it is flush with the case or coverTOOLS: Driver: 07749-0010000 Attachment, 52 55 mm 07746-0010400
PINION NEEDLE BEARING
Remove the stopper ring by rotating it until its end appears in the access holeBend up the end of the ring with screwdriverGrasp the end of the ring with needle-nose pliers and pull the stopper ring out through the access holeRemove the oil filler capHeat the gear case to 80C (176F) and remove the needle bearing by using the special toolsTOOLS: Remover shaft, 15 mm Bearing remover, 15 mm Remover weight 07936-KC10100 07936-KC10200 07741-0010201 or 07936-371020A or 07936-3710200 (U.S.Aonly)
STOPPER RING