Odd. Your bracket looks different than mine. It might be that mine is of the the passenger side and your is of the drivers side. I never looked if there was a difference. My dart was built in Jan 1967 (mid production year) I wonder if the stamping was altered at some point? I will look at the drivers side when I get home and see it looks like yours.
Thanks for the photos. I would be more than happy for any other photos you want to send my way.