Rear Output Shaft

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Rear Output Shaft, Bearing & Mainshaft Rear Support Bushing

Courtesy of GENERAL MOTORS CORP.

Clean the rear output shaft with rear output shaft bearing in cleaning solvent.
Air dry and ensure all solvent is removed from the bearing.
Inspect the rear output shaft bearing for the following conditions:
- Scoring
- Pitting
- Brinelling
- Excessive wear
Replace the rear output shaft bearing if it is faulty. Refer to Transfer Case Disassemble and Transfer Case Assemble .
Inspect the mainshaft rear support bushing for the following conditions:
- Pitted
- Wear
- Corrosion
Replace the mainshaft rear support bushing if any of the above conditions are found. Refer to Transfer Case Disassemble and Transfer Case Assemble .
Inspect the rear output shaft splines for wear or damage.
Inspect the rear output shaft bearing area for a spun bearing.
Replace the rear output shaft if any of the above conditions are found.