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Home >> Chevrolet >> 2012 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1901 (Transfer Case - BW 4485 (Nr3)) >> Repair Instructions - Off Vehicle >> Transfer Case Cleaning and Inspection >> Rear Output Shaft

Rear Output Shaft

WARNING: This page is about a different car, the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Cadillac Escalade EXT, 2012 Cadillac Escalade ESV, and 2012 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
    GM1708327Courtesy of GENERAL MOTORS COMPANY
  1. Clean the rear output shaft with rear output shaft bearing in cleaning solvent.
  2. Air dry and ensure all solvent is removed from the bearing.
  3. Inspect the rear output shaft bearing for the following conditions:
    • Scoring
    • Pitting
    • Brinelling
    • Excessive wear
  4. Replace the rear output shaft bearing if it is faulty. Refer to Transfer Case Disassemble , and Transfer Case Assemble .
  5. Inspect the mainshaft rear support bushing for the following conditions:
    • Pitted
    • Wear
    • Corrosion
  6. Replace the mainshaft rear support bushing if any of the above conditions are found. Refer to Transfer Case Disassemble , and Transfer Case Assemble .
  7. Inspect the rear output shaft splines for wear or damage.
  8. Inspect the rear output shaft bearing area for a spun bearing.
  9. Replace the rear output shaft if any of the above conditions are found.