Rear Differential Carrier: Inspection
- After clearing, check for damage parts or abrasion. Follow the below method, if any are noticed.
Item Identify Gear set (drive pinion gear & drive gear) The gear set must be replaced with a new one if the gear tooth is damaged (crack/pits/dents). Bearing The bearing must be replaced with a new one if the bearing roller or race is damaged (crack/pits/dents). Oil seal The oil seal must be replaced with a new one if disassembled. Differential carrier The carrier must be replaced with a new one if the inside of the carrier bearing is damaged (crack/pits/dents) or a crack is found inside/outside. Companion flange The pinion oil seal must be replaced with a new one if the contact surface is damaged (crack/pits/dents). - Check the ring gear tooth contact pattern.
Tooth contact Contact state Solution Standard contact 1. Wheel contact Increase the thickness of the pinion height adjusting shim, and position the drive pinion closer to the center of the drive gear.
Also, for backlash adjustment, reposition the drive gear farther from the drive pinion.2. Face contact 3. Toe contact Decrease the thickness of the pinion height adjusting shim, and position the drive pinion farther from the center of the drive gear.
Also, for backlash adjustment, reposition the drive gear closer to the drive pinion.4. Flank contact NOTE:- Tooth contact pattern is a method for judging the result of the adjustment of drive pinion height and final drive gear backlash. The adjustment of drive pinion height and final drive gear backlash should be repeated until the tooth contact patterns are similar to the standard tooth contact pattern.
- If the tooth contact pattern is not correct, the drive gear and drive pinion exceed their limits. Both gears should be replaced as a set.