GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 45124 Removal Bridge
    • J 45160 Differential Bearing Race Remover

    Object Number: 783891  Size: SH
  1. Install the J 45160 onto the bearing race taking care to make sure the bottom of the tool is all the way down inside the race and seats flat on top of the selective shim before tightening.
  2. Using two wrenches tighten J 45160 to firmly seat the tool into the bearing race for removal.

  3. Object Number: 783892  Size: SH
  4. Position the adjustable leg sections of J 45124  (1) to seat squarely onto the top of the case section around the front differential bearing race (90).
  5. Attach J 45124  (1) to J 45160  (2) and hand tighten the center bolt to lightly apply tension to prevent movement of the tool assembly. Reinspect the position of the adjustable legs of J 45124  (1) to ensure that the front differential bearing race will clear the adjustable legs and no damage to the transmission case assembly will occur when removing the race.
  6. Tighten the bolt on J 45124  (1) to remove the front differential bearing race (90) from the transmission case assembly.

  7. Object Number: 784176  Size: SH
  8. Remove the front differential bearing race selective shim (88) from the transmission case assembly.
  9. Measure the front differential bearing race selective shim (88) to determine its size. Based on the obtained measurement, refer to Shim Size Specifications in order to determine the correct size of shim that will be needed. If the obtained rotational torque measurement was less than the listed specification, then a larger/thicker selective shim will be required. If the obtained rotational torque measurement was greater than the listed specification, then a smaller/thinner shim will be required.