Installation of Differential Case

INSTALLATION OF DIFFERENTIAL CASE ASSEMBLY





1. Select side bearing adjusting washer.
2. Install differential case assembly with side bearing outer races into gear carrier.





3. Insert left and right side bearing adjusting washers in place between side bearings and carrier.





4. Align mark on bearing cap with that on gear carrier and install bearing cap on gear carrier.
88 - 98 Nm (9.0 - 9.9 kg-m, 65 - 72 ft. lbs.)
5. Install side oil seal.





6. Measure ring gear-to-drive pinion backlash with a dial indicator at several point.
Ring gear backlash: 0.10 - 0.15 mm (0.0039 - 0.0059 inch) less
^ If backlash is too small, adjustment of washer thickness is required. Decrease thickness of left shim and increase thickness of right by the same amount. If backlash is too great, reverse the above procedure.
^ Never change the total amount of washers as it will change the bearing preload.





7. Check total preload with Tool.
Tool number: ST3127SOOO (See J25765-A)
When checking preload, turn drive pinion in both directions several times to seat bearing rollers correctly.
Total preread: 2.84 - 3.75 Nm (0.29 - 0.38 kg-m, 26 - 33 inch lbs.)
^ If preload is too great, remove the same amount of washer to each side.
^ If preload is too small, add the same amount of washer to each side. Never add or remove a different number of washers for each side. Difference in number of washers will change ring gear to drive pinion backlash.

8. Recheck ring gear to drive pinion backlash. Increase or decrease in thickness of shims will cause change to ring gear to pinion backlash.
^ Check whether the backlash varies excessively in different places. Foreign matter may be caught between the ring gear and the differential case causing the trouble.
^ The backlash can vary greatly even when the ring gear runout is within a specified range. In that case, replace the hypoid gear set or differential case.





9. Check runout of ring gear with a dial indicator.
Runout limit: 0.05 mm (0.0020 inch) less
10. Check tooth contact.





11. Install rear cover. Apply sealant to rear cover side and install gear carrier.