65 Dart Conv.

Not sure what the trim piece is called but it appears that I am missing a piece on each side of my convertible top at each top corner above the header gasket. There are two empty screw holes there and I can not get the gasket set I bought to cover the top corner were the conv top meets the top of the A post. Any suggestions or does anyone have these parts available.
Thanks, Tim
Shot a picture of the area please!