Hi Bernie- I am aware of that- what I am wondering is if anyone has fitted disc brakes and if anyone knew who Jon Presnell was referring to in his book which I assume every Traction owner has. And, If anyone has done it, is it worth doing? I have thought of installing a power brake servo in one of my cars just for the hell of it. A servo from a 1955-57 Ford Thunderbird will work as it’s remote from the master cylinder.