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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1347 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement (All Except 9.75 Inch Axle) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a new pinion oil seal using the J 22388  (8.6 inch, 9.5 inch axles) or the J 44414  (10.5 inch, 11.5 inch axle).
  2. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the splines of the pinion yoke.
  3. Install the pinion yoke.

    Align the marks made during removal.

    NOTE: Refer to PINION FLANGE/YOKE INSTALLATION NOTICE .
  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.
    6. Fig 1: Install Pinion Oil Seal Using J 22388 (8.6 Inch, 9.5 Inch Axles) Of J 44414 (10.5 Inch, 11.5 Inch Axle)
    G01480671Courtesy of GENERAL MOTORS CORP.
  6. Install the J 8614-01  onto the pinion yoke as shown.
    Fig 2: Tighten Pinion Yoke Using J 8614-01
    G01480672Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
    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.

  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. Fig 3: Measuring Pinion Rotating Torque)
    G01480673Courtesy of GENERAL MOTORS CORP.
  10. Install the propeller shaft (3) to the pinion yoke (4). Align the reference marks made during removal.
  11. Install the propeller shaft yoke retaining clamps and the bolts.

    Tighten

    Tighten the propeller shaft yoke retaining clamp bolts to 25 N.m (18 lb ft).

  12. Install the axle shafts (10.5 inch, 11.5 inch axle). Refer to Rear Axle Shaft and/or Gasket Replacement .
  13. Install the brake rotors (8.6 inch, 9.5 inch axles). Refer to BRAKE ROTOR .
  14. Install the brake calipers (8.6 inch, 9.5 inch axles). Refer to BRAKE CALIPER .
  15. Install the tire and wheel assemblies. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION  .
  16. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Lubricant Level Inspection - Rear Drive Axle (8.6 Inch Axle)  or Lubricant Level Inspection - Rear Drive Axle (9.5, 10.5 Inch Axle)  or Lubricant Level Inspection - Rear Drive Axle (11.5 Inch Axle)  or Lubricant Level Inspection - Rear Drive Axle (9.75 Inch Axle) .
  17. Lower the vehicle.
Fig 4: Propeller Shaft & Retaining Clamp Bolts & Pinion Yoke
G01480674Courtesy of GENERAL MOTORS CORP.
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