66 Dart master cylinder replacement

You can do this with a master cylinder from a 68 dart/valiant. At RockAuto, it's $30. RAYBESTOS Part # MC36221. I did this to mine over the winter and all works good. That is the only part you need to buy other than new brake lines. No proportioning valve needed.

You will have to make up some new lines and run them but can use your current distribution block. You will have to plug one of the holes. Look at how the distribution goes and I'm sure you can figure it out. One line goes to the back and splits at the rear end.

Don't want to turn this into a big long response but if you need detail, PM me and I will get more detailed for you.

Dennis