This was very easy to install for the right price. I have a 65 Mustang coupe.Pulling the old single master off and placing the new dual master cylinder in its place. followed the instructions by using the old push rod from the single master cylinder. the lines that come with this kit are use less though. I had to go to Advance Auto and got 2 lines from them to bend and make the lines that would got to the distribution box part#(PAA-0370) and the other with the right fittings to and from the new dual master cylinder. This should not be sold as a kit for this application or make the right lines for it. I took a coat hanger to make the right bends prior to bending the new lines to ensure right fit. don't forget you will need line bender and flange kit since you will have to cut one end of the line for the right length. I would send pics of the process for those who may come across this upgrade but don't know were to dwn load.
This is an easy and prudent safety modification for 65-66 Mustangs. Relying on a single bowl system may be original but is not safe. This kit makes changing to a safer dual bowl system very easy. The instructions aren't as good as the kit. They're written as though the drum and disc brake systems were the same, which they are not. Also, you will need to tweak the hardlines and the stainless tubing is REALLY STIFF. I like the standard steel lines. Use a plier-type tubing bender for a nice fit.