We drive around in our vintage rides being proud and enjoying our hard work bringing these old treasures back to life. Then in the real world of countless other cars driving around us, not realizing that we can not stop as fast or as safe as they can. The reality sets in. Our vintage cars are a ticking time bomb in todays madness of day to day driving. I had a major scare two years ago and that directed me in upgrading my 1957 Pontiac to a dual brake master system. Obviously with a single master brake system, when there is a failure anywhere in the system, it is catastrophic. A good friend of mine Peter V. sourced out a dual master that required very minimal work to convert. 1967 Chev Camaro master for drum front and drum rear and non power, bolts right in and I only had to bend new brake lines to make my new dual master system come to life. I would recommend this vital upgrade to everyone. It could mean your life or someone else's life. Cheers.