GM Service Manual Online
For 1990-2009 cars only

This procedure covers the seal and bearing replacement for the steering gears. The steering gear uses one double lip seal. The seal may be replaced without removing the power steering gear. Refer to pitman shaft seal and bearing replacement.

Removal Procedure

Tools Required

    • J 6278 Pitman Shaft Bearing Remover and Installer
    • J 6219 Pitman Shaft Oil Seal Installer
    • J 4245 Internal Snap Ring Pliers
  1. Disconnect the pitman arm from the steering gear. Refer to one of the following procedures in Steering Linkage:
  2. • RWD -- Pitman Arm Replacement
    • S4WD -- Pitman Arm Replacement
    • C3500HD -- Pitman Arm Replacement
  3. Clean the exposed end of the pitman shaft and the housing.
  4. Use a wire brush in order to clean the pitman shaft splines.
  5. Remove the dust seal.
  6. Use the J 4245 in order to remove the retaining ring.
  7. Important: Do not score the housing bore when prying out the seals and the washers.

  8. Use a screwdriver in order to pry the backup washer and the double lip seal from the housing.
  9. Inspect the housing for burrs and remove if necessary.
  10. Insert the J 6278 through the hole in the top of the housing in order to remove the needle bearing.

Installation Procedure

  1. Coat the lip seal and the washer with grease.
  2. Use J 6278 in order to assemble the needle bearing to the housing.
  3. Install the double lip seal.
  4. Install the backup washer.
  5. Use the J 4245 in order to install the retaining ring.
  6. Install the pitman shaft and the side cover. Refer to Steering Gear Pitman Shaft and Housing Cover Replacement - Off Vehicle .
  7. Install the pitman arm to the steering gear. Refer to one of the following procedures in Steering Linkage:
  8. • RWD -- Pitman Arm Replacement
    • S4WD -- Pitman Arm Replacement
    • C3500HD -- Pitman Arm Replacement