2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 289Get this manual
Differential: Insert the universal joint to the bearing and check the play by turning the universal joint, as shownIf excessive play is noted, replace the bearing with new one 3B-14
Pinion Gear Inspect the pinion gear for wear or damageInspect the pinion gear bearing for abnormal noise and smooth rotationIf any defects are found, replace defective parts
I827H1320048-01
Front Drive Gear CaseCase Cover Oil Seals Inspect the gear case and case cover oil seals for wear or damageIf any wear or damage is found, replace the oil seal with new one