2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 303Get this manual
Differential: Apply gear oil to the oil seal lip Install new oil seal by tapping it with plastic mallet 3B-28
Lock the final gear coupling nut with center punch
I827H1320101-01 I827H1320099-02
Apply silicone grease to the O-ring: Grease 9900025100 (SUZUKI SILICONE GREASE or equivalent) Insert the final gear coupling (5) into the final gear case
Final Gear Related Parts Inspection
Refer to "Final Gear Assembly Removal and Installation (Page 3B-21)" and "Final Gear Assembly Disassembly and Assembly (Page 3B-23)"