This Scott Drake DBC-A120-D-R Front Disc Brake Conversion Kit with a Dual Bowl Master Cylinder is a complete bolt-on system that will give you everything you need to convert your manual front drum brakes into factory-style 4-piston disc brakes. You'll use your original V8 drum brake spindles, and you won't need to worry about doing any cutting, drilling, or welding to install them. The kit includes premium-quality zinc-plated calipers with stainless steel pistons, a dual reservoir master cylinder, and an adjustable proportioning valve.