2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 293Get this manual
Differential: 3) Install the left and right side shims and front drive (differential) assembly 3B-18
5) Rotate the front drive (differential) gear several turns in each directionThis will provide contact pattern on the coated teeth of front drive (differential) gear6) Remove the front drive (differential) gear and compare the coated teeth to the examples shown in [A], [B] and [C]If tooth contact is found to be incorrect (example [A] and [C]), the shim must be changed and the tooth contact should be re-check until correct (example [B])