71 Brake Problems
My rear brakes are not operating properly. Replaced the master cylinder with a new one. Replaced all four rubber flex lines. Replaced the proportional valve. Bled the brakes. The front wheels will slide but the rear wheels do no stopping. With the rear brake pads removed the rear wheel calipers will move out when the brake pedal is depressed. It appears there is low fluid pressure at the wheel cylinders. Any help will be appreciated.