1967 dart 270 hodge podge

The only thing you might be able to use are the spindles, calipers and rotors. None of the other stuff will work on an A body.
You will need to locate a set of '73 and newer A body "big ball joint" upper control arms to use those spindles, your existing lower control arms will work.
Lots of good info on brake parts interchangeability in the bigblockdart.com tech archive.
Tech Index (archive.org)