Contact Pattern Location - Except Dana S135

Contact Pattern Location - Except Dana S135
In general, desirable ring gear tooth patterns must have the following 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 backlash with a thicker pinion position shim as necessary.






Correct pinion position shim that requires a decrease in backlash.






Correct pinion position shim that requires an increase in backlash.