Finally getting to it!!! 1970 Duster 340

I did notice that there are some differences in the brackets from the originals. The angle that you mentioned and the fact that the new ones have 4 mounting points not 3. I can live with the differences since I believe that original brackets are difficult to source.
My body man should be getting back to work on the car now that Carlisle is over. I expect to post some more pictures in the near future.