GM Service Manual Online
For 1990-2009 cars only

Disassembly Procedure


    Object Number: 163629  Size: SH
  1. Use the following procedure in order to test the operation of the one-way clutch:
  2. 1.1. Turn the hub clockwise while holding the outer race.

    Verify that the hub turns freely.

    1.2. Turn the hub counterclockwise while holding the outer race.

    Verify that the hub locks.


    Object Number: 439140  Size: SH
  3. Remove the No. 2 planetary carrier thrust washer (1, 9) from both sides of the carrier.
  4. Disassemble the one-way clutch (4) by removing the following components from the one-way clutch:
  5. • The hub
    • The rear planetary gear (8)
  6. Remove the snap rings (2, 6) on both sides of the one-way clutch (4).
  7. Remove the two side retainers (3, 5).
  8. Remove the one-way clutch (4) from the outer race (7).

Assembly Procedure


    Object Number: 163631  Size: SH
  1. Install the one-way clutch into the outer race.
  2. The flanged side (1) of the one-way clutch should face inward from the shiny side (2) of the outer race.


    Object Number: 439140  Size: SH
  3. Install the retainers (3, 5).
  4. Install the two snap rings (2, 6).

  5. Object Number: 163633  Size: SH
  6. Install the planetary gear into the one-way clutch.
  7. The inner race of the planetary gear should face inward from the back side of the outer race.


    Object Number: 163629  Size: SH
  8. Test the operation of the one-way clutch.

  9. Object Number: 439140  Size: SH
  10. Install the No. 2 planetary carrier thrust washers (1, 9) onto both sides of the carrier.
  11. Coat the thrust washers with petroleum jelly.
  12. Align the tab of the thrust washers with the hollow of the carrier.