2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 300Get this manual
REAR DRIVING MECHANISM PINION BALL BEARING AND SHIM REPLACEMENT Be careful not to damage the pinion gear
Press the pinion gear out of the bearing using hydraulic pressRemove the pinion shim
Install the shim and bearing onto the pinion gear with the marked side of the bearing facing outNOTE: When the gear set, ring gear bearing andor gear case has been replaced, use 2.00 mm (0.079 in) thick shim
BEARING
PINION GEAR
Press the pinion gear into the bearing until it is fully seated by supporting the inner race with the special toolTOOL: Attachment, 30 mm I.D