Honda 2005 FOURTRAX FOREMAN TRX500 TM Service Manual page 270

REAR WHEEL/SUSPENSION
Remove the left and right swingarm pivot caps.
Loosen the right swingarm pivot lock nut using the
special tool.
TOOL:
Lock nut wrench 07908-4690003
Remove the left and right swingarm pivot bolts, and
the swingarm from the frame.
Remove the universal joint from the output shaft.
Check the universal joint boot for tears or other
damage and replace it if necessary.
14-9