2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 257Get this manual
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FRONT CONSTANT VELOCITY JOINTS AND DIFFERENTIAL GEAR
4.Attach: Gear lash measurement tool Dial gauge Gear lash measurement tool: PNYM-01467, 90890-01467
a Measuring point is 21 mm (0.83 in