2001 Arctic Cat ATVs factory service and repair manual, Page 329Get this manual
8Install the magnetic drain plug with the gasketTighten securelyFig6-76
6Measure gear casehub clearance using the following procedureAUsing feeler gauge, measure clearance at 3, 6, 9, and 12 o'clock positionsBMeasurements must be between 0.4-0.6 mm (0.016-0.024 inN OTIf hin specification, the gear case and hub must be shimmed (see Shim Chart)
9Install the oil level inspection plug with the O-ringTighten securelyFig6-77