LEMON Manuals: Even more car manuals for everyone
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) >> Removal Procedure

Removal 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.
IMPORTANT: Observe and mark the positions of all the driveline components, relative to the propeller shaft and the axles, prior to disassembly. These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. Reassemble all the components in the exact places in which you removed the parts. Follow any specifications, torque values, and any measurements made prior to disassembly.
  1. Raise the vehicle. Refer to JACKING AND LIFTING .
  2. Remove the tire and wheel assemblies (8.6 inch, 9.5 inch axles). Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION  .
  3. Remove the rear brake calipers (8.6 inch, 9.5 inch axles). Refer to BRAKE CALIPER .
  4. Remove the brake rotors (8.6 inch, 9.5 inch axles). Refer to BRAKE ROTOR .
  5. Remove the axle shafts (10.5 inch, 11.5 inch axle). Refer to Rear Axle Shaft and/or Gasket Replacement .
  6. Reference mark the rear propeller shaft (3) to the rear axle pinion yoke (4).
  7. Disconnect the propeller shaft from the axle.

    Wrap the bearing caps with tape in order to prevent the loss of bearing rollers.

    Support the propeller shaft as necessary.

    8. Fig 1: Place Reference Mark Rear Propeller Shaft To Rear Axle Pinion Yoke
    G01480666Courtesy of GENERAL MOTORS CORP.
  8. Measure the amount of torque required to rotate the pinion. Use an inch-pound torque wrench.

    Record this measurement for reassembly. This will give the combined preload for the following components:

    • The pinion bearings
    • The pinion pilot bearing (10.5 inch axle)
    • The pinion oil seal
    • The differential case bearings
    • The axle bearings (8.6 inch, 9.5 inch axles)
    • The axle seals (8.6 inch, 9.5 inch axles)
    9. Fig 2: Measuring Pinion Preload
    G01480667Courtesy of GENERAL MOTORS CORP.
  9. Place an alignment mark between the pinion and the pinion yoke.
    Fig 3: Alignment Mark
    G01480668Courtesy of GENERAL MOTORS CORP.
  10. Install the J 8614-01  as shown.
  11. Remove the pinion nut while holding the J 8614-01. 
  12. Remove the washer.
    13. Fig 4: Remove Pinion Nut Using J 8614-01
    G01480669Courtesy of GENERAL MOTORS CORP.
  13. Install the J 8614-01  (2) and the J 8614-3  (3) into the J 8614-01  (1) as shown.
  14. Remove the pinion yoke by turning the J 8614-3  (3) clockwise while holding the J 8614-01  (1). Use a container in order to retrieve the lubricant.
  15. Remove the pinion oil seal. Use a suitable seal removal tool. Do not damage the housing.
Fig 5: Remove Pinion Yoke Using J 8614-2, J 8614-3 & J 8614-01
G01480670Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals