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 component 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.
2. Remove the tire and wheel assemblies.
3. Remove the brake drums.
4. Remove the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - REAR .
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
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: Making Alignment Mark Between Pinion Stem & Pinion Flange/Yoke

   Courtesy of GENERAL MOTORS CORP.
8. Install J 8614-01  as shown.
9. Remove the pinion nut while holding yoke using J 8614-01  .
10. Remove the washer.
    Fig 3: Removing Pinion Nut

    Courtesy of GENERAL MOTORS CORP.
11. Install the J 8614-2  (2) and J 8614-3  (3) into the J 8614-01  (1) as shown.
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.
    Fig 4: Removing Pinion Yoke

    Courtesy of GENERAL MOTORS CORP.

    Important:  Do not damage the axle housing sealing surface.

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