Sway bar adapter

That picture is from a Mopar Muscle article that they put those parts on a 340 Dart & the thread that led me to it was a couple of guys having used brackets like those on early 70s Darts. I wonder if they made different sized ones. Are the k-frames different in that area between A & B bodies? For what I am going to pay someone to make & weld plates to my k-frame these might be a better option. I could even still get them welded but they would look better than some homemade brackets. I may just order the whole set from Energy & just hold onto the extra bushings.