I bought the top cat ones through our local dealer. They fit and are ok. There are two different designs which I believe may have been year specific and had to do with the outer whisker. One has felt and one has the rubber flap. A 66 car possibly had the felt fuzzy design on the inner and outer sides of the glass. A 67 had fuzzy on the inside and a rubber flap on the outside. Here is the issue with the after markets that I ran into on the qtr outer space. They are the flap design as originals but thicker. They also lack the formed,pinched end as the originals do. The problem this created is when the qtr glass is rolled up and down it snags the chrome trim and wants to tear the flap. I tried glueing the end to form the pinch design bit it still is not as good as the originals. The fuzzy design may work better there due to the snag issue. This is also dependent on the adjustment of the glass as well. I wanted original design and wound up using one original on one side since it was still in decent shape. Pictured is flap vs fuzz design. I say the 66 may have had outer fuzz because our car has a used door on it which had those on it. Pictured as well