General Information

Before final assembly of the differential, a gear tooth contact pattern check should be performed.

A gear tooth contact pattern check is NOT a substitute for adjusting pinion depth and backlash as previously outlined. It is a method to verify the correct running position of the ring gear and the drive pinion. Gear sets which are not positioned properly may be noisy, have a, short life, or both. With a pattern check, the best contact between the ring gear and the drive pinion for low noise level and long life can be ensured.