This window sweep 4 piece set (window felt) is the highest quality available. 1500 Series 1500 Series GMC 4 Wheel Drive Window Sweep Set. 1500 Series 1500 Series GMC Rear Wheel Drive Window Sweep Set.
1964 Chevrolet C20 Window sweeps have wrong size retainer clips installed, The only way to secure them on your vehicle is by screwing or riveting them in place.