Its almost impossible to remove that C pillar inside plastic trim piece in one piece anymore, since after all this time, they are pretty brittle and then you have to be able to get behind the clip holding it on to the C pillar (just like a door panel clip, so it doesn't come out that easy either) and that clip is in the center of the whole piece. Even using a thin flat but slightly curved bar to try to remove it they still break on me most of time these days. I am lobbying Bob Baker of ABC moparts to have these reproduced and he is working with his supplier to get some made up. I gave him a couple perfect ones to use for this project. I am hoping he will be able to provide them by the end of the year. This would be one of those higher volume parts, I believe, needed by the 1969 through 1971 C body two door hardtops (not the fast tops though). They are all the same in those years for the standard curved roof.