Removal Procedure

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. Assemble all the components in the exact places in which you removed the parts. Follow any specifications, torque values, and measurements made prior to disassembly.

1. Raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
2. Remove the tire and wheel assemblies. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
3. Remove the brake calipers. Refer to BRAKE CALIPER (REAR) in Disc Brakes.
4. Remove the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - REAR in Propeller shaft.
5. Measure the amount of torque required to rotate the pinion. Use an inch-pound torque wrench. 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 Amount Of Torque Required To Rotate Pinion Use An Inch-Pound Torque Wrench

   Courtesy of GENERAL MOTORS CORP.
6. Record the measurement.
7. Draw an alignment mark between the pinion stem and the pinion flange/yoke.
   Fig 2: Identifying Mark Between Pinion Stem & Pinion Flange/Yoke

   Courtesy of GENERAL MOTORS CORP.
8. Install the J 8614-01  as shown.
   Fig 3: Removing Pinion Nut While Holding J 8614-01

   Courtesy of GENERAL MOTORS CORP.
9. Remove the pinion nut while holding the J 8614-01. 
10. Remove the washer.
11. Install the J 8614-2 (2) and the J 8614-3 (3) into the J 8614-01  (1) as shown.
    Fig 4: Installing J 8614-2 & J 8614-3 Into J 8614-01

    Courtesy of GENERAL MOTORS CORP.
12. 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.

    Important:  Do not damage the axle housing sealing surface.

13. Remove the pinion oil seal using a suitable seal removal tool.