1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 232Get this manual
FRONT DIFFERENTIALFINAL DRIVE
BACKLASH INSPECTION
Remove the oil filler capInstall the pinion holder onto the pinion joint with four 10 mm nutsSet the holder in the viseSet horizontal type dial indicator on the ring gear, through the oil filler holeInstall the drive shaft into the ri9.ht side of differential gear and rotate the differential assemblyring gear by turning the drive shaft by hand until gear slack is taken upTurn the ring gear back and forth to read backlash
_-(1) DRIVE SHAFT
0.080.18 mm (0.003-0.007 in) STANDARD: SERVICE LIMIT: 0.25 mm (0.010 in)
Remove the dial indicatorTurn the ring gear and measure backlashRepeat this procedure once moreCompare the difference of the three measurementsDIFFERENCE OF MEASUREMENT SERVICE LIMIT: 10 mm (0.004 in)
If the difference in measurements exceeds the limit, it indio cates that the bearing is not installed squarely Inspect the bearings and reinstall them correctly, if necessaryIf backlash is too small, replace the ring gear left side spacer with thicker oneBacklash is changed by about 0.06 mm (0.002 in) when thickness of the spacer is changed by 0.10 mm (0.004 in)RING GEAR SPACERS: A: 1.82 mm (0.072 B: 1.88 mm (0.074 C: 1.94 mm (0.076 D: 2.00 mm (0.079 E: 2.06 mm (0.081 F: 12 mm (0.083 G: 2.18 mm (0.086 H: 2.24 mm (0.088 I: 2.30 mm (0.091