Sierra 2500 2WD V8-6.6L DSL Turbo (2007)
13. Install the J 8614-2 (2) and the J 8614-3 (3) into the J 8614-01 (1) as shown.
14. Remove the pinion yoke by turning the J 8614-3 (3) clockwise while holding the J 8614-01 (1).
Use a container in order to retrieve the lubricant.
15. Remove the pinion oil seal. Use a suitable seal removal tool. Do not damage the housing.
Installation Procedure
1. Install a new pinion oil seal using the J 22388 (8.6 inch, 9.5 inch axles) or the J 44414 (10.5 inch, 11.5 inch axle).
2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of the pinion yoke.
3. Install the pinion yoke.
Align the marks made during removal.
Notice: Refer to Pinion Flange/Yoke Installation Notice.
4. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few pinion shaft threads show through the yoke.
5. Install the washer and a new pinion nut.
6. Install the J 8614-01 onto the pinion yoke as shown.
Notice: Refer to Fastener Notice.
Important: If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.
7. Tighten the pinion nut while holding the J 8614-01.
Tighten the nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.
