1995-2003 Honda Foreman TRX400FW TRX400 TRX 400 400FW Service Manual, Page 306Get this manual
REAR DRI VING MECHANISM DRIVE PINION REMOVAL Install the pinion holder on the pinion ;Oint and socura In Yise as shown
TOOl: Pinion holder
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RemoYe Ihe pinion jOint nUl, Ihen ramOye Ihe pinion holdeand pinion joint
RemovG tho pinion joint and D-ringRemove the oil at
a RING VnstDke Ihe pinion bearing lock nut with drill or grinderBe careful that metal panicles do not enter the bearing and Ihatlhethruds are not damaged