Hello, I have a 68 Coupe which is an original, factory power drum brake car and feel the need to convert to manual brakes. My questions are: 1) Can I use the original master cylinder which has a "shallow" piston or will I have to locate a "deep" piston master cylinder? 2) Can the studs coming out of the firewall for the booster be removed for a clean installation? 3) Does holes have to be made in the firewall for the master cylinder? 4) Will I have to locate a brake pedal pushrod for a manual brake application?
You will need the deep hole manual MC and manual push rod. The MC will bolt directly to the top firewall studs. The distribution block bracket will bolt to the two pass. side studs. The lower driver side stud just takes a nut. You will also need to take care of the excess line length.
Personally, I would put my efforts into a disc brake conversion instead.