I discovered today that I have a hydraulic leak somewhere in my brake system. Since I can't see brake fluid leaking out anywhere I suspect that one or more of the wheel cylinders is leaking. I went to one of the often used vendors mentioned here to look for rebuild kits and found out that they offer two different sizes, 1" and 1 1/8". The way that they are labelled in the vendor's web site leads me to believe that on a 1/2 ton truck the rear cylinders are 1" bore and the fronts are 1 1/8" bore. I would prefer to have all of the parts available before I tear into the brake system so does anyone know which ones to order for a '63 C-10 LWB Fleet with hydraulic (non power assisted) brakes?
