2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 346Get this manual
REAR DRIVING MECHANISM
REAR FINAL GEAR ASSEMBLY
O-RING OIL FILLER CAP RING GEAR BEARING OIL SEAL STOPPER RING PINION NEEDLE BEARING RING GEAR GEAR CASE
RING GEAR BEARING
PINION GEAR SHIM O-RING