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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1463 (Front Drive Axle) >> 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 Crossmember Replacement - Rear Steering Gear in Frame and Underbody.
    5. Fig 1: Measuring Pinion Rotation Torque - Front Axle
    GM157174Courtesy of GENERAL MOTORS CORP.
  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
    6. Fig 2: View Of Pinion Shaft & Pinion Yoke Alignment Marks
    GM788905Courtesy of GENERAL MOTORS CORP.
  6. Scribe an alignment line between the pinion shaft and the pinion yoke.
    7. Fig 3: Holding Pinion Flange Using Special Tool
    GM664065Courtesy of GENERAL MOTORS CORP.
  7. Install the J 8614-01  onto the pinion as shown. See Special Tools and Equipment .
  8. Remove the pinion nut while holding the J 8614-01  . See Special Tools and Equipment .
    9. Fig 4: Removing Pinion Yoke
    GM664070Courtesy 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. See Special Tools and Equipment .
  10. Remove the pinon yoke by turning the J 8614-3  (3) clockwise while holding the J 8614-01  (1). See Special Tools and Equipment .
    11. 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.
    12. Fig 5: View Of Dust Deflector
    GM767106Courtesy of GENERAL MOTORS CORP.
  12. Remove the dust deflector from the pinion yoke using a soft-faced hammer.
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