how rare are power Brakes ?

- Marvin - said
That is interesting to learn, because I always thought, that front disc brakes were standard on H-code Dusters. At least 1970 to 1971?

My 71 340 4 speed Duster was manual 10 in drum brakes. My 72 340 Auto Duster was manual K-H Disc. They were original but I did not order them new.