Contact Pattern Location

Contact Pattern Location

In general, desirable ring gear tooth patterns must have these characteristics:

^ Drive pattern on the drive side differential ring gear well centered on the tooth.
^ Coast pattern on the coast side differential ring gear well centered on the tooth.
^ Clearance between the pattern and the top of the tooth.
^ No hard lines where the pressure is high.

Acceptable differential ring gear tooth patterns for all axles.






Correct backlash with a thinner pinion position shim as necessary.






Correct pinion position shim that requires an increase in backlash.






Correct backlash with a thicker pinion position shim as necessary.






Correct pinion position shim that requires a decrease in backlash.