Help With The Brakes!

The problem (s) with keeping your drum/drum master cylinder with a disc/drum setup are that first you need a bigger resevoir for the brake fluid for the disc brakes. Calipers require a lot more brake fluid than wheel cylinders to operate. Think about it.. the large bore of a caliper vs. the relatively small bore of a wheel cylinder. Also, drum/drum master cylinders hold a few pounds of pressure on the lines at all times to reduce pedal travel. This isn't good with disc brakes, you might actually run into a problem where they can't totally release due to the pressure on the lines.