Wanted 6-1/4" Midland Brake Booster 69 A-Body

Got you, sounds like you are going with a non-factory/MOPAR set-up, best of luck.
Restoration shop put on a GM KIT Booster & MC. I have factory correct discs and spindles for 65 Dart. Looking to clear the 273 Charger valve covers with something closer to factory.
thanks for the feedback.