C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
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1. Install a new pinion oil seal using the J22388 or the J44414.
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 in Service Precautions.
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 J8614-01 onto the pinion yoke as shown.
Notice: Refer to Fastener Notice in Service Precautions.
Important: It 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 J8614-01.
Tighten the nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.