1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 253Get this manual
REAR AXLEFINAL DRIVE GEAR AND DRIVE SHAFT
1 1-1'0-1 DRIV
5) Therefore, shim thickness "8" is, "8"= 45.531.05(34.9511.00)46.5845.950.63 6) Round off the hundredths digit and select the appropriate shim(s)In the example above, the calculated number is 0.63The chart instructs you to round off to at the hundredth placeThus, the shim thickness is 0.65 mmHundredths Rounded value
0,1,2 3,4,5,6, 7
Shims are supplied in the following thicknessesRing gear shim Thickness (mm)