GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the pitman arm. Refer to Pitman Arm Replacement in Steering Linkage.
  2. Place a pan under the steering gear in order to catch the oil.

  3. Object Number: 24410  Size: SH
  4. Remove the dust seal using a pry tool.

  5. Object Number: 24416  Size: SH
  6. Remove the pitman shaft seal retaining ring.
  7. Remove the steel washer.

  8. Object Number: 24421  Size: SH
  9. Remove the oil seal using a pry tool. Do not scratch the bore.

Installation Procedure

    Important: Avoid contaminating the power steering system. Clean parts in clean solvent and wipe dry with a lint-free cloth. Dirt and lint in the power steering fluid can cause early parts failure.

  1. Inspect the pitman shaft seal surfaces for roughness or pitting. If pitted, replace the shaft.
  2. Inspect the housing for burrs. Remove the burrs before installing new seals.
  3. Clean the pitman shaft and seal areas in clean solvent.

  4. Object Number: 24421  Size: SH
  5. Lubricate the new seal with power steering fluid.
  6. Install the seal using a suitable pipe as a driver. If the service kit is a two-piece seal, be sure to place the nylon inner ring into the recess of the outer seal face.

  7. Object Number: 24416  Size: SH
  8. Install the steel washer.
  9. Install the pitman shaft seal retaining ring.

  10. Object Number: 24410  Size: SH
  11. Install the dust seal.

  12. Object Number: 590  Size: SH
  13. Center the steering gear.
  14. 9.1. Turn the steering wheel until it stops.
    9.2. While you are counting the number of turns, turn the steering wheel in the opposite direction until it stops.
    9.3. Turn the steering wheel back one-half the number of turns counted in the step above.
  15. Install the pitman arm. Refer to Pitman Arm Replacement in Steering Linkage.
  16. Bleed the system. Refer to Bleeding the Power Steering System.