Rear Window Replacement

REMOVAL PROCEDURE
Tools Required
1. J 24402-A Glass Sealant (cold knife) Remover
2. J 39040 Quarter Glass Remover




1. Unclip the defogger connector at the left and the right side of the window from the inside of the cab, if equipped.
2. Remove the rear window lower molding.
3. Remove both rear seat headrests (extended cab).
4. Use the J 24402-A or the J 39040 in order to remove the window from the vehicle.




5. With an assistant standing outside of the vehicle, push the window out from the vehicle.
6. Inspect the urethane adhesive and the pinchweld flange in order to determine if the short method or the extended method is required. Refer to Short Method Description & Extended Method Description. Short Method Description Extended Method Description
7. If you are performing the short method, use a utility knife or equivalent tool in order to trim the remaining adhesive to a uniform thickness.
8. If you are performing the extended method, use a utility knife or equivalent tool in order to remove all of the urethane adhesive from the pinchweld flange.
9. Clean any loose material from the window opening.




10. If you are reusing the glass, remove the remaining urethane adhesive from the glass.
11. Clean the sealing surface with GM window cleaner P/N 1050427 or the equivalent.

INSTALLATION PROCEDURE

IMPORTANT: If you are using the short method, do not apply primer over the existing urethane adhesive.




1. If you are performing the extended method, apply primer to the pinchweld flange.
^ Use pinchweld primer #3 or the equivalent from GM P/N 12346284.
^ Allow the primer to dry for 10 minutes.




2. Apply glass prep primer (clear, number 1) to the sealing surface. No drying time is needed.
3. Wipe any excess primer off immediately.
4. Apply glass prep primer (black, number 2) to the sealing surface of the glass.




5. If you are using the extended method, apply a continuous 8 mm (0.32 in) wide by 11 mm (0.43 in) high bead of urethane to the glass sealing surface.
6. If you are performing the short method, apply a continuous 6 mm (0.25 in) bead of urethane to the existing urethane.




7. Place the glass into the opening.
8. Firmly press on the outer edges of the glass in order to seat the urethane adhesive. Avoid excessive urethane adhesive squeeze-out.
9. Using a soft spray of water, immediately test the effectiveness of the urethane sealant.
9.1. Softly spray warm or hot water around the outside edges of the glass.
9.2. If any water leaks are present inside the vehicle, apply additional urethane sealant to the leak area using a flat blade tool.
9.3. Dry the glass and the body.
10. Partially roll down a door window in order to prevent excess pressure in the passenger compartment when closing the doors.
11. Connect the defogger clips on each side of the window on the inside of the body connectors, if equipped.
12. Install all trim panels which were removed in order to gain access for rear window removal.
13. Install the headrests.