I have a brake booster with master and all the brackets still connected I cleaned it up and it looks new let me know I'm not going to need it my duster has manual brakes
I think I have brake booster/ master cyl and bracket as well came off a 74 Dart Sport. May have the cardboard that came out of same car. If they will work let me know and I can get pics of them by the weekend. Send me a PM if interested.