GM Service Manual Online
For 1990-2009 cars only

Pressure Link- Five Bow Pressure on Stowage Lid

Adjust the lower pressure link to change the #5 bow pressure to the stowage compartment lid.

    • Decrease the pressure if the top material is contacting and marring the lid.
    • Increase the pressure if water is leaking between the top and the lid.

    Object Number: 289910  Size: SH
  1. Position the folding top with the #1 bow and the #5 bow up.

  2. Object Number: 476758  Size: SH

    Important: The jam nuts are left handed thread.

  3. Loosen the jam nut (1) on the pressure link where the adjuster attaches to the #5 bow.
  4. Mark the pressure link large adjustment nut (2) to aid in determining the amount of adjustment.
  5. Adjust the pressure link by rotating the large adjustment nut one turn at a time.
  6. Rotate the nut clockwise to increase the downward pressure of the #5 bow on the stowage lid. Turn the nut counter clockwise to decrease the downward pressure.


    Object Number: 476822  Size: SH
  7. Raise the top.
  8. Check the gap between the lid (2) and the #5 bow top cover material (1).
  9. The gap between the lid and the top material should be 2-3 mm (0.08-0.12 in).

    The gap between the five bow top material and the lid should be the same all the way across.


    Object Number: 476795  Size: SH
  10. Check the alignment of the front latch pins (2) with their receivers (3).
  11. The front latch pins should be aligned so that when the top is raised the pins drop into the receivers.

  12. Lower the top and re-adjust the pressure link as necessary.

  13. Object Number: 289910  Size: SH
  14. Position the folding top with the #1 bow and the #5 bow up.
  15. 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.

  16. Tighten the jam nut.
  17. Tighten
    Tighten the nut to 50 N·m (37 lb ft).

  18. Raise and close the folding top.
  19. Water test the folding top. Refer to Waterleak Test Preparation in Waterleaks.
  20. Re-adjust the pressure link if necessary.

Side Rail-Top of Door Window Contacting Top Fabric

To eliminate the top center of the window from hooking under the roof material adjust the knurled nut between the front and center side rails to increase the amount of bow in the side of the top.


    Object Number: 289910  Size: SH
  1. Position the top with the #1 and #5 bow up.

  2. Object Number: 777793  Size: SH
  3. Adjust the knurled nut outward to increase the bow in the roof.
  4. Raise the top and check the window clearance.
  5. The window, in a full up position, should not contact the top material when opening and closing the door.

  6. Lower and re-adjust the top using the knurled nut as necessary.
  7. Raise and close the folding top.
  8. Water test the folding top. Refer to Waterleak Test Preparation in Waterleaks.
  9. Adjust the window if necessary. Refer To Door Window Tip-In Adjustment in Doors.

Rear Side Rail-Loose Fabric

To tighten the roof material, adjust the rear side rail rearward.


    Object Number: 476756  Size: SH
  1. Lower the folding top.
  2. Open the small cover/door on top of the lock pillar to access the adjuster.
  3. Loosen the adjuster jam nut.
  4. Mark the adjuster nut to aid in determining the amount of adjustment.
  5. Loosen the adjuster nut one turn at a time.
  6. Raise the top and check the top material for tightness.

  7. Object Number: 476795  Size: SH
  8. Check the alignment of the front latch pins (2) with their receivers. The front latch pins should be aligned so that when the top is raised the pins drop into the receivers.

  9. Object Number: 476756  Size: SH
  10. Lower and re-adjust the top using the adjuster as necessary.
  11. 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.

  12. Tighten the jam nut.
  13. Tighten
    Tighten the nut to 50 N·m (37 lb ft).

  14. Water test the folding top. Refer to Waterleak Test Preparation in Waterleaks.