I am down to just one. I used to work at a night club. We had 250,000 gallon salt. You had to swim with the sharks to clean the glass. Worked there 15 years or so. Way back when wanted my wife and I to get married in it. But I did use the entire place as a venue for reception. With full sit down steak dinners for whole party.
Once in a life time opertunity.
As far as the OP I just looked and couldn't find the 1973 bumper brackets.
I know i have some spare 1973 Dart ones if it's same as Duster.
Are Duster and Dart the same in 1973? If so will keep looking.
What we found was 1970-71 Challenger. Sorry, lots of stuff moved last hurricane due to storm damages. I can't find lots of stuff. Some stuff was tossed out.