Chevrolet Silverado / GMC Sierra. Service manual — part 1382

Fig. 211: Holding Pinion Flange Using Special Tool
Courtesy of GENERAL MOTORS CORP.

12. Install the J 8614-01 onto the pinion yoke as shown. See Special Tools.

13. Tighten the pinion nut while holding the J 8614-01 . See Special Tools.

NOTE:

Refer to Fastener Notice .

IMPORTANT: If the rotating torque is exceeded, the pinion will have to be

removed and a new collapsible spacer installed.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Tighten: Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion
while tightening the nut in order to seat the bearings.

14. Remove the J 8614-01 . See Special Tools.

15. Measure the rotating torque of the pinion using an inch-pound torque wrench.

Specification: The rotating torque of the pinion should be 1.0-2.3 N.m (10-20 lb in) for
used bearings, or 1.7-3.4 N.m (15-30 lb in) for new bearings.

16. If the rotating torque measurement is below 1.0 N.m (10 lb in) for used bearings, or 1.7 N.m

(15 lb in) for new bearings, reinstall the J 8614-01 and continue to tighten the pinion nut.
See Special Tools.

Specification: The rotating torque of the pinion should be 1.0-2.3 N.m (10-20 lb in) for
used bearings, or 1.7-3.4 N.m (15-30 lb in) for new bearings.

17. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings

have seated.

Recheck the rotating torque and adjust if necessary.

18. Remove the J 8614-01 . See Special Tools.

19. Assemble the right side differential adjuster nut into the differential nut sleeve until fully

seated.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 212: Installing Axle Shaft Bearings Into Differential Adjuster Nut Sleeve Using
J 8092 & J 36612
Courtesy of GENERAL MOTORS CORP.

20. Install the right side axle shaft bearings into the differential adjuster nut sleeve using the J

36612 (2) and the J 8092 (1). See Special Tools.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

21. Install the left side axle shaft bearing into the differential adjuster nut sleeve using the J

36609 and the J 8092 . See Special Tools.

22. Install the right side differential adjuster nut assembly and new adjuster lock nut tab into the

differential carrier case using the J 36609 and the J 8092 . See Special Tools.

23. Install the left side differential adjuster nut assembly into the differential carrier case.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Front Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado