GM Service Manual Online
For 1990-2009 cars only

Differential Side Bearings Replacement All Except 9.75 Inch Axle

Tools Required

    • J 22912-B Split Plate Bearing Puller
    • J 8092 Universal Driver Handle - ¾ in - 10
    • J 21784 Side Bearing Installer
    • J 22888-D Side Bearing Remover Kit
    • J 29710 Differential Side Bearing Installer
    • J 36597 Side Bearing Puller Pilot - 9.25  Axle
    • J 44420 Differential Bearing and Hub Seal Installer

Removal Procedure

  1. Remove the differential assembly. Refer to Differential Replacement .

  2. Object Number: 680400  Size: SH
  3. Remove the differential side bearings by doing the following:
  4. 2.1. For the 8.6 inch, 9.5 inch, 11.5 inch axles, install the differential assembly into a vise.
    2.2. For the 10.5 inch axle, place a block of wood on each side of the differential assembly.

    Install the differential assembly into a vise.

    2.3. Install the J 22888-20A  (2) and the J 8107-4 , 8.6 inch axle, or the J 36597 , 9.5 inch or 10.5 inch axle, or the J 8107-5, 11.5 inch (1) axle, over the differential case side bearing bore.
    2.4. Remove the differential side bearings using the J 22888-20A .

Installation Procedure


    Object Number: 651740  Size: SH
  1. For the 8.6 inch, the 9.5 inch, and the 10.5 inch axles, install the differential side bearings by doing the following:
  2. 1.1. In order to protect the differential case, install the J 8107-4 , 8.6 inch axle, or the J 36597 , 9.5 inch or 10.5 inch axles, in the case on the side opposite the bearing installation.
    1.2. Install the J 21784 , 8.6 inch axle, or the J 29710 , 9.5 inch or 10.5 inch axles (2), and the J 8092  (1) onto the differential case bearing as shown.
    1.3. Drive the bearing onto the case using the J 21784 or the J 29710 and the J 8092 .

    Object Number: 720308  Size: SH
  3. For the 11.5 inch axle, install the differential side bearings by doing the following:
  4. 2.1. In order to protect the differential case, install the J 8107-5 in the case on the side opposite the bearing installation.
    2.2. Install the J 44420  (2) and the J 8092  (1) onto the differential case bearing as shown.
    2.3. Drive the bearing onto the case using the J 44420 and the J 8092 .
  5. Install the differential assembly. Refer to Differential Replacement .