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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1493 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. , 8.0 inch axle or the J 38694  8.6 inch axle.
  2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of the pinion yoke.
    Fig 1: Installing New Pinion Oil Seal Using J 33782
    G01597877Courtesy of GENERAL MOTORS CORP.
  3. Install the pinion yoke.

    Align the marks made during removal.

    NOTE: Do not hammer the pinion flange/yoke onto the pinion shaft. Pinion components may be damaged if the pinion flange/yoke is hammered onto the pinion shaft.
  4. Seat the pinion yoke onto the pinion shaft by tapping it with a soft-faced hammer until a few pinion shaft threads show through the yoke.
  5. Install the washer and a new pinion nut.
    Fig 2: Aligning Mark
    G01597878Courtesy of GENERAL MOTORS CORP.
  6. Install the J 8614-01  onto the pinion yoke as shown.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
    IMPORTANT: If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.
  7. Tighten the pinion nut while holding the J 8614-01  .

    Tighten 

    Tighten the nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.

    Fig 3: Installing J 8614-01 Onto Pinion Yoke
    G01597879Courtesy of GENERAL MOTORS CORP.
  8. Measure the rotating torque of the pinion. Compare this measurement with the rotating torque recorded during removal.

    Tighten 

    Tighten the nut in small increments, as needed, until the rotating torque is 0.40-0.57 N.m (3-5 lb in) greater than the rotating torque recorded during removal.

  9. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated. Recheck the rotating torque and adjust if necessary.
  10. Install the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - FRONT  in Propeller Shaft.
  11. Install the brake rotors. Refer to Brake Rotor Replacement - Rear   in Disc Brakes.
  12. Install the brake calipers. Refer to Brake Caliper Replacement - Rear   in Disc Brakes.
    Fig 4: Measuring Rotating Torque
    G01597880Courtesy of GENERAL MOTORS CORP.
  13. Install the tire and wheel assemblies. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION  in Tires and Wheels.
  14. Inspect and add axle lubricant to the axle housing, if necessary. Refer to LUBRICANT REPLACEMENT - REAR DRIVE AXLE   .
  15. Lower the vehicle.
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