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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Front Drive Axle >> Repair Instructions >> Differential Carrier Assembly Disassemble >> Disassembly Procedure

Disassembly Procedure

    Fig 1: Inner Axle Shaft Housing & Differential Carrier Assembly Bolts
    GM865998Courtesy of GENERAL MOTORS CORP.
  1. Remove the inner axle shaft housing to differential carrier assembly bolts.
    2. Fig 2: Inner Axle Housing & Inner Axle Shaft
    GM866006Courtesy of GENERAL MOTORS CORP.
  2. Remove the inner axle housing with the inner axle shaft.
  3. Install the inner axle shaft housing into a vise.
    4. Fig 3: Identifying J 45755-2, J 45755-1, Forcing Screw, Bearing & Washers Over Inner Shaft Housing Bushing
    GM863546Courtesy of GENERAL MOTORS CORP.
  4. Install the J 45755-2 (2), J 45755-1 (1), and the forcing screw, bearing and washers (3) over the inner shaft housing bushing as shown.
  5. Remove the inner shaft housing bushing using the J 45755  . See Special Tools .
  6. Remove the inner axle shaft from the inner axle housing using a hammer and brass drift.
    7. Fig 4: View Of J 29369-2 & J 2619-01
    GM856114Courtesy of GENERAL MOTORS CORP.
  7. Install the J 29369-2  behind the inner axle shaft seal. See Special Tools .
  8. Install the J 2619-01  (2) to the J 29369-2  (1). See Special Tools .
  9. Remove the inner axle shaft seal using the J 2619-01  .
    10. Fig 5: Identifying J 29369-02 Behind Inner Axle Shaft Seal
    GM856120Courtesy of GENERAL MOTORS CORP.
  10. Install the J 29369-2  behind the inner axle shaft bearing. See Special Tools .
  11. Install the J 2619-01  (2) to the J 29369-2  (1). See Special Tools .
  12. Remove the inner axle shaft bearing using the J 2619-01  .
  13. Place the differential carrier assembly into a vise.

    Clamp only on the mounting flange of the differential carrier assembly case.

    14. Fig 6: View Of Left Side Inner Axle Shaft
    GM868339Courtesy of GENERAL MOTORS CORP.
  14. Remove the left side inner axle shaft using a hammer and a brass drift.
    15. Fig 7: Identifying J 2619-01 & J 29369-2
    GM868343Courtesy of GENERAL MOTORS CORP.
  15. Install the J 29369-2  (2) behind the inner axle shaft seal. See Special Tools .
  16. Install the J 2619-01  (1) to the J 29369-2  (2). See Special Tools .
  17. Remove the inner axle shaft seal using the J 2619-01  .
    18. Fig 8: Identifying J 29369-2 Behind Inner Axle Shaft Seal Or Inner Axle Shaft Bearing
    GM868357Courtesy of GENERAL MOTORS CORP.
  18. Install the J 29369-2  (2) behind the inner axle shaft bearing. See Special Tools .
  19. Install the J 2619-01  (1) to the J 29369-2  (2). See Special Tools .
  20. Remove the inner axle shaft bearing using the J 2619-01  .
    21. Fig 9: Differential Carrier Assembly & Hole Plug
    GM847066Courtesy of GENERAL MOTORS CORP.
  21. Remove the front differential carrier hole plug.
    22. Fig 10: Differential Carrier Assembly Bolts
    GM868451Courtesy of GENERAL MOTORS CORP.
  22. Remove the differential carrier assembly bolts.
    23. Fig 11: Separating Left & Right Carrier Case Half By Tapping On Carrier Case Lugs With Hammer
    GM868452Courtesy of GENERAL MOTORS CORP.
  23. Separate the left carrier case half from the right carrier case half by tapping on the on the carrier case lugs with a brass drift and a hammer.
    24. Fig 12: Differential Case Assembly
    GM868459Courtesy of GENERAL MOTORS CORP.
  24. Remove the differential case assembly.
  25. Disconnect the right side differential bearing adjuster nut lock from the differential bearing adjuster nut by prying up on the lock.
    26. Fig 13: Differential Adjuster Nut Lock Bolt
    GM868367Courtesy of GENERAL MOTORS CORP.
  26. Remove the differential bearing adjuster nut lock bolt from the differential bearing adjuster nut.
    27. Fig 14: Differential Adjuster Nut Lock
    GM868375Courtesy of GENERAL MOTORS CORP.
  27. Remove the differential bearing adjuster nut lock from the differential bearing adjuster nut.
    28. Fig 15: Right Side Differential Side Bearing Cup, Differential Bearing Adjuster Nut & Differential Bearing Adjuster Sleeve
    GM868454Courtesy of GENERAL MOTORS CORP.
  28. Remove the right side differential side bearing cup, the differential bearing adjuster nut, and the differential bearing adjuster sleeve by doing the following:
    1. Install the J 36599-A  onto the differential bearing adjuster nut. See Special Tools .
    2. Turn the J 36599-A  clockwise in order to push the bearing cup out of the bore. See Special Tools .
    3. Remove the differential bearing adjuster sleeve using a hammer and a brass drift.
    29. Fig 16: Turning Left Side Differential Adjuster Nut Sleeve Using J 36615
    GM868450Courtesy of GENERAL MOTORS CORP.
  29. Remove the left side differential bearing adjuster by doing the following:
    1. Install the J 36615  onto the differential bearing adjuster nut as shown. See Special Tools .
    2. Turn the J 36615  counterclockwise in order to remove the differential bearing adjuster nut, the O-ring seal and the differential side bearing cup. See Special Tools .
    30. Fig 17: Identifying J 8614-01 Onto Pinion Yoke
    GM868455Courtesy of GENERAL MOTORS CORP.
  30. Install the J 8614-01  as shown. See Special Tools .

    Remove the pinion nut while holding the J 8614-01  . See Special Tools .

  31. Remove the washer.
    32. Fig 18: Identifying J 8614-2 & J 8614-3 Into J 8614-01
    GM868456Courtesy of GENERAL MOTORS CORP.
  32. Install the J 8614-2 (2) and the J 8614-3 (3) into the J 8614-01  (1) as shown. See Special Tools .
  33. Remove the pinion yoke by turning the J 8614-3 (3) clockwise while holding the J 8614-01  (1). See Special Tools .
    34. IMPORTANT: Carefully pry the seal from the bore. Do not distort or scratch the aluminum case.
  34. Remove the pinion oil seal using a suitable seal removal tool.
    35. Fig 19: Identifying J 45765 To The Left Side Differential Carrier Case
    GM847067Courtesy of GENERAL MOTORS CORP.
  35. Install the J 45765  to the left side differential carrier case half over the drive pinion as shown. See Special Tools .
  36. Turn the forcing screw of the J 45765  clockwise to remove the following components from the left side differential carrier case half:. See Special Tools .
    • The drive pinion gear
    • The pinion gear selectable shim
    • The inner pinion bearing
    • The collapsible spacer
  37. Remove the collapsible spacer from the pinion.
  38. Remove the outer pinion bearing from the differential carrier case half.
    39. Fig 20: Removing Inner Pinion Bearing Using Hydraulic Press
    GM680110Courtesy of GENERAL MOTORS CORP.
  39. Remove the inner pinion bearing by installing the J 22912-B  between the pinion bearing and the pinion gear and pressing the bearing off the pinion. See Special Tools .
  40. Remove the pinion gear selectable shim.
    41. Fig 21: View Of J 45754-3 Over Inner Pinion Bearing Cup
    GM866062Courtesy of GENERAL MOTORS CORP.
  41. Install the J 45754-3 over the inner pinion bearing cup.
    42. Fig 22: View Of J 45754 Forcing Screw Into J 45754-3
    GM866059Courtesy of GENERAL MOTORS CORP.
  42. Install the forcing screw (1) of the J 45754  into the J 45754-3 (2). See Special Tools .
  43. Drive out the inner pinion bearing cup by pounding on the forcing screw with a hammer.
    44. Fig 23: Identifying J 45754-2 & Forcing Screw
    GM866064Courtesy of GENERAL MOTORS CORP.
  44. Install the J 45754-2 (2) and the forcing screw (1) over the outer pinion bearing cup bore.
    45. Fig 24: Forcing Screw, J 45754-2 & J 45754-4
    GM866067Courtesy of GENERAL MOTORS CORP.
  45. Install the J 45754-4 (3) into the pinion bearing bore behind the outer pinion bearing cup.

    Slowly turn the forcing screw (1) until the J 45754-4 is evenly seated behind the outer pinion bearing cup bore and the J 45754-2 (2) is evenly seated over the outer pinion bearing cup bore.

  46. Remove the outer pinion bearing cup by turning the forcing screw clockwise.
    47. Fig 25: Identifying J 45755-3, J 45755-4, Forcing Screw, Bearing & Washers Over Differential Carrier Assembly
    GM863549Courtesy of GENERAL MOTORS CORP.
  47. Install the J 45755-3 (2), J 45755-4 (3), and the forcing screw, bearing and the washers (1) over the differential carrier assembly bushing as shown.
  48. Remove the differential carrier assembly bushing using the J 45755  . See Special Tools .
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