GM Service Manual Online
For 1990-2009 cars only

Installation Procedure


    Object Number: 343995  Size: SH
  1. Turn the luggage carrier side rails upside down on a clean, flat surface.

  2. Object Number: 343996  Size: SH
  3. Install the luggage carrier cross rails to the luggage carrier.
  4. 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.

  5. Install the luggage carrier cross rail screws.
  6. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  7. Apply masking tape to all attaching areas of the roof.

  8. Object Number: 343994  Size: SH
  9. Measure in from the right rear edge of the roof as specified:
  10. • 140.0 mm (5.512 in) on the long wheel base
    • 135.0 mm (5.315 in) on the short wheel base
  11. Measure in from the right side rear edge of the roof as specified:
  12. • 35.0 mm (1.378 in on the long wheel base
    • 35.0 mm (1.378 in on the short wheel base
  13. Use the measurements as a location for the right rear luggage carrier attaching hole.
  14. Align the assembled luggage carrier to the right rear luggage carrier.
  15. Install the center luggage carrier to the roof, retaining the location of the right rear edge measurement.
  16. Ensure that the luggage carrier is equally spaced to all sides of the roof.

  17. Tape the luggage carrier to the roof in order to retain the location of the luggage carrier to the roof.
  18. Important: Ensure that the rack is properly located since there are clearance holes in the roof structure immediately under the luggage carrier attaching holes.

  19. Use the luggage carrier as a template for locating the drill locations for the attachment of the side rails to the roof.
  20. Clearly mark the location of the attaching holes.

  21. Object Number: 343993  Size: SH

    Important: Remove and install the luggage carrier as an assembled luggage carrier.

  22. Remove the luggage carrier from the roof.
  23. Important: Ensure that the drill depth is carefully controlled. Failure to do so may result in drilling through the headliner panel. You may have to remove the headliner panel before drilling the holes.

  24. Use a 4 mm (9.016 in) drill bit in order to drill pilot holes attaching holes at the marked locations.
  25. Check the pilot attaching holes to the clearance holes in the roof structure immediately under the luggage carrier pilot attaching holes
  26. Use a 10 mm (0.40 in) drill bit in order to drill out the pilot attaching holes at the marked locations of the attaching holes.
  27. Remove the tape from the roof.

  28. Object Number: 343997  Size: SH
  29. Align the luggage carrier slats to the raised portions of the roof.
  30. Use the top as alignment marks for the luggage carrier slats.
  31. Install the luggage carrier slats to the roof. Refer to Luggage Carrier Slats.
  32. Apply touch up paint around the attaching hole as needed.

  33. Object Number: 343998  Size: SH
  34. Use a rivnut® tool, or equivalent, in order to install the rivnut® to the attaching hole.
  35. Important: Remove and install the luggage carrier as an assembled luggage carrier.

  36. Install the luggage carrier to the roof.
  37. Install the center luggage carrier mounting screws on the long wheel base vehicle, if equipped.
  38. Tighten
    Tighten the screws to 5.5 N·m (49 lb in).

  39. Install the front and the rear luggage carrier mounting screws.
  40. Tighten
    Tighten the screws to 5.5 N·m (49 lb in).