2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 403Get this manual
REAR DRIVING MECHANISM Install the proper ring gear shims onto the ring gear and install them into the gear caseGEAR CASE RING GEAR
SHIM Apply liquid sealant to the mating surface of the case coverInstall the cover onto the gear caseSHIM
CASE COVER Apply locking agent to the threads of the two 10 mm boltsIt is important to turn the pinion while tightening the boltsIf the ring gear shim is too thick, the gears will lock after only light tightening
8 mm BOLTS
10 mm BOLTS