what front disc setup do you use?
I used the Wilwoods on my 71 dart. at first I was going to go with Aerospace, but was told that I had to fill out a spec sheet, and then they would make the brake kit based on my measurments. I wasn't scared that I would mess the measuring up. I understood it just fine. My worry was that if they screwed up on their end, and the kit didn't fit, well......you know who that would get blamed on. So, I found the Wilwoods that went with the factory 9 inch drum spindle. they fit perfect, and are very easy to install. super light, and very high quality.