2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 310Get this manual
Servicing Center Crankcase Components NOTE: Whenever part is worn excessively, cracked, damaged in any way, or out of tolerance, replacement is necessary
SECONDARY GEARS
7Using rubber mallet, tap the output driveshaft from the bearingAccount for shim, driven bevel gear, washer, and nut
NOTE: When checking and correcting secondary gear backlash and tooth contact, the universal joint must be secured to the front shaft or false measurements will occur
Checking Backlash
NOTE: The rear shaft and bevel gear must be removed for this procedureAlso, always start with the original shims on the rear shaft
1Place the left-side crankcase cover onto the left-side crankcase half to prevent runout of the secondary transmission output shaft2Install the secondary driven output shaft assembly onto the crankcaseFI407
3Mount the dial indicator so the tip is contacting tooth on the secondary driven bevel gear4While rocking the driven bevel gear back and forth, note the maximum backlash reading on the gauge5Acceptable backlash range is 0.03-0.15 mm (0.001-0.006 inCorrecting Backlash