2008 Yamaha Rhino YXR70FX Factory Service Manual, Page 332Get this manual
FRONT CONSTANT VELOCITY JOINTS, DIFFERENTIAL GEAR AND DRIVE SHAFT
3Install: ring gear fix bolt (M10) (into the drain plug hole) Ring gear fix bolt (M10) 90890-01527, YM-01527 NOTICE
Finger tighten the bolt until it holds the ring gearOtherwise, the ring gear will be damaged4Attach: gear lash measurement tool dial gauge Gear lash measurement tool 90890-01475 Middle drive gear lash tool YM-01475