GM Service Manual Online
For 1990-2009 cars only

Assembly Procedure

Tools Required

J 7728 Shaft Oil Seal Installer

  1. Lubricate the new drive shaft seal (1) with power steering fluid.

  2. Object Number: 558344  Size: SH
  3. Use the J 7728 in order to install the drive shaft seal (1) into the pump housing.
  4. Install the pump ring dowel pins into the pump housing.

  5. Object Number: 558356  Size: SH
  6. Install the thrust plate (2) and the pump rotor (3) to the drive shaft (1).
  7. Install the new shaft retaining ring onto the drive shaft.
  8. Install the drive shaft subassembly into the pump housing.
  9. Install the vanes into the pump rotor.

  10. Object Number: 558374  Size: SH
  11. Install the pump ring (1) into the pump housing.
  12. Ensure that the holes are positioned correctly onto the dowel pins.

  13. Lubricate the new O-ring with power steering fluid.
  14. Install the O-ring into the groove in the pump housing.
  15. Install the pressure plate.
  16. Install the pressure plate spring.
  17. Lubricate the new O-ring with power steering fluid.
  18. Install the O-ring into the end cover.
  19. Lubricate the outer edge of the end cover with power steering fluid.
  20. Press the end cover into the pump housing.

  21. Object Number: 558380  Size: SH
  22. Install the retaining ring (5) into the groove in the pump housing.
  23. Ensure that the ring opening is near the access hole in the pump housing.