Service bulletin PIP5090H

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that may have a noise, vibration or shudder on acceleration from a stop. Technician may find that the right front axle shaft is not fully seated into the transfer case. Technician will need to inspect the splines on the half shaft for damage. If damage is found replace the half shaft and install a new retaining ring with part number 90223082. When the half shaft does not have damage to the splines technician should replace the retaining ring with part number 90223082. Technician will also need to remove all grease from the transfer case intermediate drive shaft internal splines and axle shaft splines. Apply General Motors grease on intermediate drive shaft splines 0.5 grams in two 120 degree quadrants each, 180 degree apart. Ensure the other two adjacent quadrants have splines free of grease. Apply grease within 15 millimeter of leading spline edge and do not apply in the retaining ring groove.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Suspension

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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