2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 441Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 441

Shimming ProcedureShim Selection 1Press bearings into bores by outer ring to hard contact with seat2Note the following shim
assembly into gear case housingAssembling Pinion Gear 1Place the shimwith the chamfer side toward the inside) onto the pinion
shaft; then install the bearing onto the pinion shaftInstall the pinion shaft collar NOTE: Do not stake the lock collar until
proper backlash has been verified CCover Sideadd the value (B) on the gear case housing to the value (C) on the gear case
cover; then add 1.5 mm (0.060 inThis will give you the proper shim thicknessDGear Case Sideinstall 1.3-1.4 mm (0.050-0.055
in shim and tighten the bolts to 3.5-4.3 kg-m (25-31 ft-lb)Verify backlash to be within range of 0.28-0.38 mm (0.011-0.015