1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 264Get this manual
FRONT DRIVING MECHANISM (TRX300FW) DIFFERENTIAL HOUSING
Check the slots for wear or damage
DRIVE PINION REMOVAL
Install the pinion holder on the pinion joint and secure in vise as shown
(1) PINION HOLDER
TOOL: Pinion holder
07924-HA00001 or 07924- HAOOOOO (Modified)
Remove the pinion joint nut, then remove the pinion holder and pinion joint