1998-2004 Honda Foreman 450 factory service manual, Page 324Get this manual
FRONT DRIVING MECHANISM SIDE CONE SPRING Check the spring for damageMeasure the height of the cone spring SERVICE LIMIT: 2.6 mm (0.10 in)
DRIVE PINION REMOVAL ('9S'01)
Install the pinion holder on the pinion jOint and secure in vise as shownTOOL: Pinion holder
07SMB-HM70200
Remove the pinion joint nut, then remove the pinion holder and pinion joint