2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 348Get this manual
REAR DRIVING MECHANISM Be careful not to Install the pinion joint onto the pinion gear shaft by damage the oil seal pushing it in until the stopper ring seats in the pinlipion joint groovePINION JOINT
RING GEAR CLEARANCE INSPECTION
Install the ring gear with the left shim into the case coverMeasure the clearance between the ring gear and stop pin with feeler gaugeCLEARANCE: 0.30.6 mm (0.010.02 in) Remove the ring gearRING GEAR