Universal pedal assembly allows conversion from under floor mount master cylinder to firewall mount Power brake pedal assembly can be used to add power brakes to early cars Cut-to-fit brake pedal and booster mount fits any configuration of firewall and dash Pedal can be mounted in five different mounting holes to change relationship between pedal and firewall Pedal ratio is 6:1 for ease of braking and works with all disc/drum setups Corvette style cast iron master cylinder provides line access from either side of unit and includes port plugs Master cylinder utilizes 1-inch bore with dual reservoirs for additional brake system safety Single diaphragm power brake boosters are compact and work with engines providing at least 17 in/hg of vacuum Kit provides easy access to master cylinder for service/maintenance versus original under floor design Power Brakes for Your Early Hot Rod There is no denying that early braking systems on the cars we love to build, like Model Ts, Model As, and other pre-war rides, were rudimentary to say the least, and that is putting it lightly. These early mechanical brake systems may have been OK for the speeds of the time, but drop a hopped-up Flattie in it, or even more power via a small-block Compatible with Chevy, and you are really asking for trouble when you must hit the “whoa” pedal after using too much of the “go” pedal. Updating these classics to “juice” brakes (hydraulically actuated) has been the thing to do for decades and we are here to make that conversion easier for you. From disc and drum conversions, brake lines, proportioning valves, fittings, and more, Speedway Motors has everything you need to convert to hydraulic brakes on your pre-war hot rod, including this universal firewall mount brake booster and master cylinder combo