Sierra 1500 2WD V6-4.3L VIN X (2004)
9. Install a new pinion oil seal using the J 22388, 8.6 inch, 9.5 inch axles, or the J 44414, 11.5 inch axle.
10. Install the pinion into the axle housing.
11. Apply sealant, GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the splines of the pinion yoke.
12. Install the pinion yoke. Align the marks made during removal.
13. 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.
14. Install the washer and a new pinion nut.
15. Install the J 8614-01 onto the pinion yoke as shown.
16. Notice: Refer to Fastener Notice in Service Precautions.
Important: If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.
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Tighten the pinion nut while holding the J 8614-01.
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Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.
