[Tommy]

When the aluminum clutch master cylinder in my car began to leak, I discovered the shaft from the pedal to the cylinder was not perpendicular to the cylinder. It had caused the cylinder to wear unevenly until it began to leak. After studying the geometry of the pedal, I realized there was no easy way to fix the alignment. So, I decided to go with a steel master cylinder rather than an aluminum one. Here's a link to the CNC Master Cylinder I'm now using.