2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 447Get this manual
FRONT DRIVING MECHANISM
SERVICE INFORMATION
GENERAL
Perform the gear contact pattern and backlash inspection whenever you replace the bearings, gears or gear caseThe extension lines from the gear engagement surfaces should intersect at one point Protect the gear case with shop towel or soft jaws while holding it in viseDo not clamp it too tight as it could damage
the gear case
Replace the ring and pinion gears as set
Replace the cam followers (12 pieces) as set, and the cam followersface cams, differential housing and cap assembly if the face cam, differential housing or cap is faulty
SPECIFICATIONS
Front differential
ITEM Oil capacity
STANDARD
Unit" mm (inl SERVICE UMIT
I At draining ,
At disassembly
Recommended oil
,Backlash difference Slip torque