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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1492 (Front Drive Axle - 4WD) >> Repair Instructions >> Differential Carrier Assembly - Disassemble >> Disassembly Procedure

Disassembly Procedure

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  1. Install the J 29369-1  (2) and the J 2619-01  (1) to the inboard or oil pan side seal as shown.
  2. Remove the seal by pulling on the J 2619-01  (1).
  3. Install the J 29369-2  and the J 2619-01  to the outboard or wheel drive shaft side seal.
  4. Remove the seal by pulling on the J 2619-01. 
    Fig 1: Installing J 29369-1 (2) And J 2619-01 (1)
    G01598045Courtesy of GENERAL MOTORS CORP.
  5. Remove the differential carrier case half bolts.
  6. Separate the differential carrier case assembly case halves.
    Fig 2: Removing Differential Carrier Case Half Bolts
    G01598046Courtesy of GENERAL MOTORS CORP.
  7. Remove the differential case assembly.
    Fig 3: Removing Differential Case Assembly
    G01598047Courtesy of GENERAL MOTORS CORP.
  8. Install the J 42213  to the left side differential bearing adjuster.
    Fig 4: Installing J 42213
    G01598048Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The differential bearing adjusters are not interchangeable. Mark the adjusters accordingly.
  9. Remove the left side differential bearing adjuster using the J 42213. 

    Mark the adjuster.

    Fig 5: Removing Left Side Differential Bearing Adjuster
    G01598049Courtesy of GENERAL MOTORS CORP.
  10. Remove the left side differential bearing cup.
  11. Install the J 45224  to the right side differential bearing adjuster.
    Fig 6: Removing Left Side Differential Bearing Cup
    G01598050Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The differential bearing adjusters are not interchangeable. Mark the adjusters accordingly.
  12. Remove the right side differential bearing adjuster using the J 45224. 

    Mark the adjuster.

    Fig 7: Removing Right Side Differential Bearing Adjuster
    G01598051Courtesy of GENERAL MOTORS CORP.
  13. Remove the right side differential bearing cup.
    Fig 8: Removing Right Side Differential Bearing Cup
    G01598052Courtesy of GENERAL MOTORS CORP.
  14. Measure the rotating torque of the drive pinion using an inch-pound torque wrench.

    Record the measurement.

    Fig 9: >Measuring Rotating Torque Using Inch-Pound Torque Wrench
    G01598053Courtesy of GENERAL MOTORS CORP.
  15. Install the J 8614-01  to the pinion yoke as shown.
  16. Remove the pinion nut while holding the J 8614-01. 
    Fig 10: Installing J 8614-01
    G01598054Courtesy of GENERAL MOTORS CORP.
  17. Install the J 45234  to the left differential carrier assembly case half as shown.
  18. Remove the pinion yoke, the washer, and the drive pinion by turning the screw of the J 45234  clockwise.
    Fig 11: Installing J 45234 To Left Differential Carrier Assembly Case
    G01598055Courtesy of GENERAL MOTORS CORP.
  19. Remove the dust deflector from the pinion yoke with a soft-faced hammer.
    IMPORTANT: Carefully pry the seal from the bore. Do not distort or scratch the aluminum case.
  20. Remove the pinion oil seal using a suitable seal remover tool.
  21. Remove the outer pinion bearing.
    Fig 12: Removing Pinion Oil Seal Using Seal Remover Tool
    G01598056Courtesy of GENERAL MOTORS CORP.
  22. Install the J 22912-O1  between the pinion bearing and the pinion gear as shown.
  23. Remove the inner pinion bearing using the J 22912-O1  and a hydraulic press.
  24. Remove the pinion gear selectable shim.
    Fig 13: Installing J 22912-O1
    G01598057Courtesy of GENERAL MOTORS CORP.
  25. Install the J 45228-4 to the outer pinion bearing cup as shown.
    Fig 14: Installing J 45228-4 To Outer Pinion Bearing Cup
    G01598058Courtesy of GENERAL MOTORS CORP.
  26. Install the J 45228-1 (2) and the J 45228-5 (1) to the J 45228-4.

    Seat the ridge of the J 45228-1 (2) into the outer pinion bearing cup bore.

  27. Remove the outer pinion bearing cup by turning the J 45228-5 (1) clockwise.
    Fig 15: Installing J 45228-1 (2) And J 45228-5 (1)
    G01598059Courtesy of GENERAL MOTORS CORP.
  28. Install the J 45228-4 to the inner pinion bearing cup as shown.
    Fig 16: Installing J 45228-4
    G01598060Courtesy of GENERAL MOTORS CORP.
  29. Install the J 45228-1 (1) and the J 45228-5 (2) to the J 45228-4.
  30. Remove the outer pinion bearing cup by turning the J 45228-5 (2) clockwise.
    Fig 17: Installing J 45228-1 (1) And J 45228-5 (2)
    G01598061Courtesy of GENERAL MOTORS CORP.
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