Rear Output Shaft

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inspection Areas On Rear Output Shaft Bearing Journals

Courtesy of GENERAL MOTORS CORP.

Clean the rear output shaft in cleaning solvent.
Clean the rear output shaft oil galleries and air dry.

IMPORTANT: Do not attempt to smooth any roughness in the bearing journals.

Inspect the bearing journals on the rear output shaft for the following conditions:
- The front support bearing (d)
- The drive gear bushing (b)
  - Scoring
  - Pitting
  - Brinelling
  - Excessive wear
Inspect the rear output shaft high/low range splines (c) for damage or excessive wear. Witness marks at the location of the gear are normal.
Inspect the rear output shaft splines (a) for wear or damage.
Inspect the rear output shaft bearing area (e) for a spun bearing.
Replace the rear output shaft if any of the above conditions are found.