2011 Arctic Cat 366SE ATV Service Manual, Page 93Get this manual
5Place the Backlash Gauge Tool into the splines of the ring gear and install dial indicator making sure it contacts the gauge at 90 angle and on the index mark 1Secure the gear case in holding fixture with the cover side up; then install dial indicator contacting the ring gear axle flange
GC065 GC040
2Zero the dial indicator; then push the ring gear toward the dial indicator and releaseEnd-play should be 0.004-0.008 in3To increase end-play, decrease the shim thicknessTo decrease end-play, increase the shim thicknessNOTE: Once proper backlash and end play are established, the gear case can be assembled (see Assembling Differential Assembly in this sub-section)
6Zero the dial indicator; then while holding the pinion stationary, rock the ring gear assembly forward and back and record the backlashBacklash must be 0.011-0.015 inIf backlash is within specifications, proceed to Ring Gear End-PlayIf backlash is not within specifications, increase shim thickness to increase backlash or decrease shim thickness to decrease backlashNOTE: Higher backlash settings usually result in quieter gear operationCC888