2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 491Get this manual
REAR DRIVING ECHANISM
UNIVERSAL JOINT
UNIVERSAL JOINT DISASSEMBLY ASSEMBLY
Bend up the loc tabs and raise the band ends to lo ose the bo ot band s
Remove the jo int bootA pply oly bden um disulfide qrease to he jo int BA ND END
be aringInst all he boo and set it nto the univarsat join properly