1967 DART OWNERS..Brake question

Whatch out for drool hurting the paint on that car!!! Are you trying to maintain a factory ordinal Dart, numbers matching etc? I'm guessing not from what little I can see in that little picture, just curious why not go after-market and power brakes with discs etc. 10 min on google and all I could find was that on the original (non gt/gts) it was a bolt down cap. BUT didn't find the answer for what was stock for the GT.