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Replacing 1990-93 Mustang Convertible Rear Quarter Belt Glass W'Strip

Created by Jay Walling / 6 min read

Date Created: 5/20/2021

Last Updated: 12/13/2022

Learn how to remove & install your factory belt weatherstrip with this 5.0 Resto rear quarter belt weatherstrip kit for 1990-93 Convertible Mustangs!

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How To Replace 90-93 Mustang Convertible Rear Quarter Belt Glass Weatherstrip - How To Replace 90-93 Mustang Convertible Rear Quarter Belt Glass Weatherstrip

In this article, we will be going over the removal and installation of the inner and outer quarter belt weatherstrips for all 1990-1993 convertible Mustangs. Often referred to as "dew wipes". The Mustang convertible inner and outer quarter window belt weatherstrips are located on the inner and outer edge of the quarter window. These help to wipe the window clean as it rolls up & down as well as provide a bit of stability to the window glass.

This 5.0 Resto Rear Quarter Belt Glass Weatherstrip is a direct replacement for the factory piece on 1990-1993 Ford Mustang convertibles. We do want to note, the inner weatherstrip design will slightly vary on the 83-89 and the 90-93 year ranges due to the interior quarter panel design. Other than the slight design changes, the installation of these parts will be the same.

You can set aside a solid afternoon to complete this task. Keep in mind, in this article you will see other parts being used. Check the links below on these items shown:

LRS-30618KA | 1990-93 Mustang Convertible Rear Quarter Belt Glass Weatherstrip Kit

1983-93 Fox Body Mustang Convertible Weatherstrip Options

Let’s head to the interior of the car first.

Inner Quarter Belt Weatherstrip Replacement

Go ahead and remove the rear seat back and the seat bottom at this time.

To make the installation a little easier you can remove the seat belts from the quarter panel.

Pull the interior quarter panels from the body of the car.

Now you can disconnect your window switch.

Moving to a clean work surface, set the quarter panel down and we can start to drill out the rivets. Using a 9/64 drill bit, drill out each of these rivets.

If any of the rivet is still left in the panel you can drive this out using a hammer and a drift.

Take this time to clean up the panel.

The existing weatherstrip we had on this car was a different design than the new one. This resulted in none of the existing holes lining up.

Set the new weatherstrip in place and make sure the chrome strip is aligned to the panel.

Use a marker to mark the new holes.

Once you have it aligned, drill out the three new holes with the 9/64” bit.

Now you can seat all of the rivets and attach these to the quarter panel.

Outer Quarter Belt Weatherstrip Replacement

Moving to the outer weather strips you will need to remove the upper well molding from the vehicle.

You will need a 9/64" drill bit and drill out the three retaining rivets holding the weatherstrip in place.

After doing some initial dry fits, make sure the notched area shown faces the front of the molding.

We also had to enlarge the holes slightly with a razor blade to allow the head of the rivet to pass through.

Moving to a clean work surface, take the new molding over and you will need to drill out the 3 new holes for the retaining rivets. Start in the center of the weatherstrip and drill out a 9/64” hole.

Once this is drilled, secure the rivet in place.

Do the same for the other 2 holes and repeat these same steps for the other side.

Reinstall both of the upper well moldings.

Reinstall the interior quarter panels.

Reinstall the rear seat back and bottom.

Now you can check over your work and you are all done!

We hope that this article has helped you, and you have a better understanding of how to install these weather strips on your convertible Fox.

As always, make sure to keep it here with the real mustang Enthusiasts at LMR.com.

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How To Replace Convertible Rear Quarter Belt Glass Weatherstrip (1990-1993)

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Published on 2021-03-18
Ensure your 1990-1993 Mustang convertible quarter windows are sealed tight with this 5.0 Resto quarter belt weatherstrip kit! Your factory belt weatherstrip will usually dry rot over time, and wear out from continuous up and down movement. This kit will include both inner and outer pieces for driver and passenger side. The inner quarter window belt weatherstripping attaches to your rear interior quarter panel and has chrome trim on it. The outer quarter window belt is located on the outside of the quarter window and attaches to the well molding or "hockey stick molding". These pieces work together to seal your convertible quarter windows, and wipe them clean when they move up and down.

Thumbnail image of the author of this article, Jay Walling.

About the Author

Jay has written content for Late Model Restoration for over 10 years, producing over 120 articles. Jay has an extensive 25-plus-year background in automotive and is a certified Ford Technician. Read more...