1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 334Get this manual
RE AR DRIVING MECHANISM the brake drum and dmm cover!page 14
22)CIean the dust sea mati ng surface of the wheel hub, Apply grease to the axle shaft spl,i neInsta ll the right wheel hubTempo rarily tig hten the right ax le nut
AX LE NUT
Install new O-ring on the final drive cas eApply grease to the O-ri ng