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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 Drive Pinion Flange/Yoke, Seal, and Dust Deflector Replacement - Front >> Removal Procedure

Removal Procedure

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  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle   in General Information.
  2. Remove the engine protection shield. Refer to Engine Protection Shield Replacement   in Frame and Underbody.
  3. Remove the front propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - FRONT  in Propeller Shaft.
  4. Remove the rear steering gear crossmember. Refer to Steering Gear Crossmember Replacement - Rear   in Frame and Underbody.
  5. Measure the torque required in order to rotate the pinion. Use an inch- pound torque wrench. Record the torque value for reassembly. This will give the combined preload for the following components:
    • The pinion bearings
    • The pinion seal
    • The carrier bearings
    • The axle bearings
    • The axle seals
      Fig 1: Measuring Torque Using Inch- Pound Torque Wrench
      G01597987Courtesy of GENERAL MOTORS CORP.
  6. Scribe an alignment line between the pinion shaft and the pinion yoke.
    Fig 2: Scribing Alignment Line Between Pinion Shaft And Pinion Yoke
    G01597988Courtesy of GENERAL MOTORS CORP.
  7. Install the J 8614-01  onto the pinion as shown.
  8. Remove the pinion nut while holding the J 8614-01. 
    Fig 3: Installing J 8614-01 Onto Pinion
    G01597989Courtesy of GENERAL MOTORS CORP.
  9. Install the J 8614-2 (2) and the J 8614-3 (3) into the J 8614-01  (1) as shown.
  10. Remove the pinon yoke by turning the J 8614-3 (3) clockwise while holding the J 8614-01  (1).
    IMPORTANT: Carefully remove the seal from the bore. Do not distort or scratch the aluminum case.
  11. Remove the oil seal using a suitable seal removal tool.
    Fig 4: Installing J 8614-2 (2) And J 8614-3 (3) Into J 8614-01 (1)
    G01597990Courtesy of GENERAL MOTORS CORP.
  12. Remove the dust deflector from the pinion yoke using a soft-faced hammer.
    Fig 5: Removing Dust Deflector From Pinion Yoke
    G01597991Courtesy of GENERAL MOTORS CORP.
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