2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 93Get this manual
MAINTENANCE
DRIVE SHAFT BOOTS (Except TM model)
Check the drive shaft boots fo cuts or other damage
If boot is damaged, replace it (page 16-7)
REAR FINAL GEAR CASE OIL AND DIFFERENTIAL OIL
FINAL GEAR CASE Oil