2008 Yamaha Rhino YXR70FX Factory Service Manual, Page 250Get this manual
MIDDLE GEAR
gnumeral (usually decimal number) on the middle driven pinion gear is either added to or subtracted from "49.0"numeral (usually decimal number) on the middle driven pinion gear is either added to or subtracted from "80.5"numeral (usually decimal number) on the right crankcase specifies thickness of "99.98"numeral (usually decimal number) on the left crankcase specifies thickness of "8.12" Example: 1) If the bearing housing is marked "+03", is 77.53 2) If the driven pinion gear is marked "+02", is 49.02 3) If the driven pinion gear is marked "+02", is 80.52 4) If the right crankcase is marked "99.98", is 99.98 5) If the left crankcase is marked "8.12", is 8.12 6) Therefore, the shim thickness is 0.88 mm"B"77.53 49.0280.52 99.98 8.12 0.020.91