Originally Posted by jerry witzel (Post 588346)

Here's an adapter for the master cylinder. https://www.ebay.com/itm/Pro-5-0-79-...wAAOSw7cZcM86v

Originally Posted by Dave Noll (Post 588327)

Umm, If it is actually Case Hardened, A solid carbide drill bit is not going through it. I like the welding in an extra 2", that will give more leverage but will put the pedal close to the floor.

My car has 2 stubs welded on the brake pedal lever from the factory. I also put as large of a Rear wheel cylinder I could find on the Fronts. (4 wheel drums)

Originally Posted by Mark Yacavone (Post 588356)

Makes sense. Might be then. Once you get the drill bit started, it'll go.
I'm sure the pedal arm is hardened for safety reasons.

Originally Posted by Alan Nyhus (Post 588337)

Case hardening only hardens the surface. The material under the hardened surface remains unaltered. :) -Al