Dragnut
I just got them from Detroit Muscle Technologies. part number is "Mopar A Body 63-66 2DHT Roofrail Weatherstrip" #70-1871-68. They dont list them on their online store so I called. The owner is Jim Filmore. Very nice person to work with. They actually come from another company. I think its called Steele Rubber Products. Jim can answer and supply any rubber questions I had. Almost everything I replaced in trim came from them.
Best of luck
Rod