2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 475Get this manual
FRONT DRIVING MECHANISM Coat new O-ring ith molybdenum isulfide grease and install it into he roove in th output
shaftApply molybden um disulfide grease to the output shaft sp linesAp ply molybden um disulfide gr ease to th propell er shaft joint spli nes
Mov the di fferential fo rward or maximum clearance between the pro peller shaft jo int and ou tp ut shaft Install the propeller shaft jo int ove he out put shaft
Align the bolt holes in the ifferential and frame, and nstall the 10 mm ou nting bertConnect he breather hose