For the '87 model year, Ford switched to a much cleaner-looking rear quarter-window assembly for Mustang hatchbacks and hardtops. Molded from vulcanized rubber, with the actual window glass embedded, the one-piece assembly was quite complex for a quarter-window, but it served its purpose by effectively blending the roof into the rear quarter-panel. But over time, with many hours of hot sun baking the side windows, the exterior rubber deteriorated, leaving a pitted and discolored window perimeter.
Over the past 10 or so years, owners of '87-'93 Mustangs have been forced to tolerate the weathered and unsightly quarter-windows. Painting over the problem only makes matters worse, while an available cover-up repair kit offers temporary improvement.
Latemodel Restoration Supply has stepped up to the plate with the ultimate solution: brand-new '87-'93 rear quarter-window assemblies manufactured by an original-equipment manufacturer. Priced at $599.95 per pair and available for both hatchbacks and hardtops, the windows are identical to the original Ford assemblies, right down to the Mustang lettering on the glass.
Replacing the rear quarter-windows is a basic R&R procedure. Getting to the nine retaining nuts for each window is the most difficult part; basically, for a hatchback, you have to remove all of the plastic trim in the rear of the interior. But, for the most part, you're dealing with small Phillips head screws, although you'll need the correct socket for unbolting the front seatbelt mechanism on each side of the car.