Hombre S Regular Cab 4WD V6-4.3L (1999)
5. Remove the pinion flange nut and the washer.
6. Use J 8614-01 in order to hold the pinion flange.
7. Remove the pinion flange. Place a container under the flange in order to retrieve the lubricant.
8. Remove the oil seal. Use a seal removal tool. Do not damage the carrier.
9. Inspect the seal surface of the pinion flange for tool marks, nicks, or damage, such as a groove worn by the seal. Replace the flange, if necessary.
Refer to Differential Pinion Flange; Service and Repair; Front; Drive Pinion Yoke Replacement.
10. Inspect the carrier bore for burrs that may cause leaks around the outside of the seal.
Installation Procedure
Tools Required
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J 8614-01 Companion Flange Holder J 23911 Pinion Oil Seal Installer
1. Install a new seal using J 23911.
2. Apply seal lubricant (GM P/N 1050169) to the outside of the pinion flange and the sealing lip of the new seal.
Important: Do not hammer the pinion flange onto the pinion stem.
3. Install the pinion flange.
4. Install the washer and nut.
Tighten
Tighten the nut on the pinion stem as close to the original marks as possible without going past the mark. Use the reference mark and
the thread count as a reference. Tighten the nut in increments. Turn the pinion flange several times after each tightening in order to
set the rollers.
