Rainier AWD L6-4.2L (2007)
Important: The mating surface of the ring gear and the differential case must be clean and free of burrs before installing the ring gear.
1. Install the ring gear to the differential case.
2. Install the new ring gear bolts.
Hand start each bolt to ensure that the ring gear is properly installed to the differential case.
Important: Tighten the new ring gear bolts alternately and in stages, gradually pulling the ring gear onto the differential case.
Notice: Refer to Fastener Notice.
3. Tighten the ring gear bolts.
For the 8.0/8.6 inch axle, tighten the ring gear bolts in sequence to 120 N.m (89 lb ft).
For the 9.5 inch axle, tighten the ring gear bolts in sequence to 140 N.m (103 lb ft).
4. Install the drive pinion bearing cups. Refer to Drive Pinion Bearings Replacement.
5. Determine the selective shim thickness for the pinion gear. Refer to Pinion Depth Adjustment.
6. Install the selective shim onto the pinion.
7. Install the inner pinion bearing onto the pinion. Refer to Drive Pinion Bearings Replacement.
8. Install a new collapsible spacer.
9. Lubricate the pinion bearings with axle lubricant. Refer to Fluid and Lubricant Recommendations.
10. Install the pinion to the axle housing.
11. Install the outer pinion bearing.
12. Using the J 38694, install a new pinion oil seal.
13. Apply sealant, GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the splines of the pinion yoke.
