This support bracket mounts to the lowest portion of the quarter window cavity. This bracket is installed before the lower guide bracket. Fits all 1971-73 Mercury Cougar models and 1971-73 Ford Mustang models including fastback or sport roof models. The exploded view of the quarter window parts can be found in the Osborn Body Assembly Manual for 1971-72. One for each quarter window, right and left are the same.
Ford part number D1ZZA-6529790-A.