if there is just "slight" interference/rubbing on the calipers, you can possibly just grind the casting a tiny bit thereby gaining all the clearance you need. you can see where everything is rubbing now, so unless it was really grinding away and the wheels were partially locked until on the road turning, it shouldn't take much to "touch up" your calipers. do you have pics of the calipers and back side of the wheels showing the interference ? as said, you could have drum wheels which have a different "drop" space in the wheel shell. there were a ton of 14" steel disc brake wheels made over the years for 73 up darts, dusters, aspens, volares, plus many variants of the B body. not sure how many are left around your area. i know around here, stock steel, dog dish compatible wheels are getting kinda scarce.