2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 397Get this manual
REAR DRIVING MECHANISM Install the special tools onto the pinion gear shaft and gear caseTOOLS: Pinion puller base 07HMC-MM80110 or 07HMC-MM8011A (U.S.Aonly) Puller shaft 07931-ME40000 or 07931-ME4010B and 07931-HB3020A (U.S.Aonly) PULLER BASE Pull the pinion gear assembly out of the gear casePULLER SHAFT
PINION GEAR BEARINGSHIM REPLACEMENT
Pull the pinion gear bearing from the shaft with commercially available bearing pullerRemove the pinion gear shim