GM Service Manual Online
For 1990-2009 cars only

Disassembly Procedure

Tools Required

    • J 34013-B Strut Spring Compressor
    • J 34013-20 Damper Rod Clamp
    • J 34013-38 Alignment Rod
    • J 34013-88 Strut Compressor Adapter
    • J 34013-125 Strut Mounting Adapter
    • J 34013-218 Modular Shock Support
    • J 35669 Strut Rod Nut Socket
  1. Remove the strut.

  2. Object Number: 176773  Size: SH
  3. Install the J 34013-125 to the J 34013-B . Use wing nuts to secure the tool to the mounting holes C (3) and E/K (1). Position the wide end of the adapter (2) outboard.

  4. Object Number: 176778  Size: SH

    Important: Ensure that the J 34013-218 and the J 34013-88 are aligned so that the tools can open and close together. The tools will not open if the tools are not aligned properly.

  5. Install the J 34013-218 and the J 34013-88
  6. Install the strut to the top of the J 34013-B . The angle of the upper strut should match the angle of the J 34013-125 (6).
  7. Install the strut (3) into the J 34013-218 and the J 34013-88 .
  8. Important: Use only one locking pin for mounting.

  9. Close the J 34013-218 and the J 34013-88 and install the locking pin (4) through the lower hole of the J 34013-B and the lower knuckle mounting hole of the strut.
  10. Turn the screw (5) on the J 34013-B counterclockwise in order to raise the strut up to the J 34013-125 . Ensure that the studs (1) go through the guide holes in the J 34013-125 and that the top of the strut is flat against the tool.
  11. Caution: Do not over compress the spring. Severe overloading may cause tool failure which could result in bodily injury.

  12. Compress the spring (2) approximately 13 mm (0.50 in) or three to four complete turns of the operating screw on the J 34013-125 .
  13. Insert the J 35669 on the nut, then insert the J 34013-38 or a T-50 Torx® bit into the end of the shaft.
  14. Remove the nut with the J 35669 while holding the rod from rotating with the J 34013-38 or a T-50 Torx® bit.
  15. Discard the strut nut.
  16. Turn the operating screw on the J 34013-B clockwise in order to fully relieve the spring compression.

Assembly Procedure


    Object Number: 176773  Size: SH
  1. Install the J 34013-125 to the J 34013-B . Use wing nuts to secure the tool to the mounting holes C (3) and E/K (1). Position the wide end of the adapter (2) outboard.
  2. Important: Ensure that J 34013-218 and the J 34013-88 are aligned so the tools can open and close together. The tools will not open if the tools are not aligned properly.

  3. Install the J 34013-218 and the J 34013-88 .
  4. Install the strut (4) to the J 34013-218 and the J 34013-88 .

  5. Object Number: 176778  Size: SH

    Important: Use only one locking pin for mounting.

  6. Close the J 34013-218 and the J 34013-88 and install the locking pin (4) through the lower hole of the J 34013-B and the lower knuckle mounting hole of the strut (3).
  7. Important: Ensure that the top of the shock absorber is flat against theJ 34013-125 . The shock absorber will not be aligned correctly if it does not lay flat against the tool.

  8. Install the strut to the top of the J 34013-B . The angle of the upper strut should match the angle of the J 34013-125 (6).
  9. Install the spring (2) and all the remaining components to the strut. Ensure that the upper and the lower spring seats are positioned correctly.
  10. Important: Ensure that the top of the strut is flat against the J 34013-125 . The strut will not be aligned correctly if it does not lay flat against the tool.

  11. Rotate the spring and the spring seats together until the angled top matches the angle of the bottom surface of the J 34013-125 (6).
  12. Turn the operating screw (5) on the J 34013-B counter-clockwise to raise the strut up to the J 34013-125 without compressing the spring. Ensure that the studs on the strut go through the guide holes in the J 34013-125 .
  13. Fully extend the strut shaft and attach the J 34013-20 . This prevents the shaft from retracting during compression.
  14. Important: Ensure that the J 34013-38 is straight with the strut. If the J 34013-38 is angled, repeat steps 1 through 6 until the tool is straight.

  15. Install plate J 34013-38 down through the top of the J 34013-B through the top of the strut and onto the shaft.
  16. Caution: Do not over compress the spring. Severe overloading may cause tool failure which could result in bodily injury.

  17. Slowly turn the operating screw (5) clockwise in order to compress the spring until the threaded portion of the strut shaft is through the top of the strut.
  18. Notice: Keep the strut rod in a stationary position when you tighten the strut nut. Turning the strut rod may damage the strut.

  19. Insert a new strut nut on the strut rod.
  20. Place the J 35669 on the shock absorber nut.
  21. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  22. Insert the J 34013-38 through the J 35669 and tighten the shock absorber nut.
  23. Tighten
    Tighten the shock absorber rod to upper mount to 75 N·m (55 lb ft).

  24. Remove the J 34013-20 , the J 34013-38 and the J 34013-B .
  25. Remove the strut from the J 34013-B .
  26. Install the strut to the body.