Installing Door Trim Strap Kit

Installing Door Trim Strap Kit (1988-1995 C/K and All 1990-02 Medium Duty Vehicles with Former Instrument Panel Design)

1. Roll the window down completely. Remove the cowl kick trim panel.

2. Remove the window regulator handle, the door handle trim plate, and the two armrest screws in order to remove the door trim panel. Refer to the Door subsection of the appropriate Service Manual for door trim panel removal information.

3. Partially peel back the tar paper from the area nearest the door hinge.

4. Roll up the window completely.

4.1. Remove the lower bolt and the washer from the door window run channel.

4.2. Discard the bolt (1) and the washer.





5. Bolt the lower part of the door trim strap bracket to the door at the vacant hole (upper window run channel bolt hole). Refer to Figure 2 for the correct placement of the bracket to the vehicle.





5.1. Mark the drilling location for the upper part of the door stop bracket with a punch (refer to the arrow in Figure 1).

5.2. Hit the punch with the tip through the hole in the check bracket.

5.3. Using a 9 mm (23/64 in) drill bit, drill a hole through the hole in the check bracket.

6. Attach the top part of the door trim strap bracket with a bolt, a washer and a nut.

7. Install the screw assembly in the bottom hole of the door trim strap bracket.

8. Remove the sill plate and the cowl kick panel in order to attach the door trim strap assembly in the cowl kick trim panel area.





9. Using template # 1 shown, mark two drill locations and one self-tapping screw location with a center punch.

10. Drill two 9 mm (23/64 in) holes in the two locations closest to the door hinge. Do no drill the third location.

11. Bolt the door trim strap anchor bracket to the kick panel area using two bolts, two washers and two nuts.

12. Install the self-tapping screw to the third hole of the anchor bracket. Install the door trim strap at this time.





13. Using template # 2 shown, mark a notch area on the cowl kick panel. This will prevent interference with the door trim strap kit. Cut the plastic cowl kick panel with an air saw, a hack saw, or a pocket knife.





14. Cut off two of the four retainer blades. One of the cut off blades has a retainer clip. Refer to Figure 3.

14.1. Remove the retainer clip (1) from the cut oft blade.

14.2. Cut two of the four plastic blades (2).

14.3. Reinstall the clip on the remaining blade (3) of the cowl kick trim panel.

15. Install the cowl kick trim panel.





16. Using template # 3 shown, mark a notch area on the door trim panel. This will prevent interference with the door trim strap kit. Cut a notch in the plastic door trim panel with an air saw, a hack saw, or a pocket knife.





17. Install the door trim panel. Refer to the above illustration showing the installed door trim strap kit.





Parts Information

Parts are currently available from GMPSO.