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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 Oil Seal and/or Bearing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, 2003 Chevrolet TrailBlazer, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The seals used in the differential carrier assembly have built in tabs that are used to retain the position of the differential side bearing adjusters. When removing the seal, do not twist or rotate the seal or the preload on the differential case side bearings may be affected.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle   in General Information.
  2. Drain the lubricant from the differential carrier assembly. Refer to LUBRICANT REPLACEMENT - FRONT DRIVE AXLE   . 
  3. Remove the left wheel drive shaft. Refer to WHEEL DRIVE SHAFT REPLACEMENT  in Wheel Drive Shafts.
  4. Install the J 6125-B  (2) and the J 29369-2  (1) onto the backside of the seal as shown.
  5. Remove the seal by pulling on the J 6125-B  (1).
  6. Place an alignment mark between the differential bearing adjuster and the differential carrier assembly case.
  7. Install the J 6125-B  and the J 29369-2  onto the backside of the bearing cage.
  8. Remove the bearing by pulling on the J 6125-B. 
  9. Remove the differential carrier assembly. Refer to DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT (4.2L IN-LINE SIX CYLINDER)   or DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT (4.8L, 5.3L, 6.0L V-8)   . 
  10. Install the J 29369-1  (2) and the J 2619-01  (1) onto the backside of the seal as shown.
  11. Remove the seal by pulling on the J 2619-01  (1).
  12. Place an alignment mark between the differential bearing adjuster and the differential carrier assembly case.
  13. Install the J 6125-B  and the J 29369-2  onto the backside of the bearing cage.
  14. Remove the bearing by pulling on the J 6125-B. 
    Fig 1: Installing Tool On Backside Of Seal
    G01598023Courtesy of GENERAL MOTORS CORP.
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