[tommys72]

Just did drums and shoes not long ago, everything looked good and i replaced a brake line too. Didnt see a leak anywhere. So my rear diaphragm was fully expanded in the really low cavity, the front diaphragm was squished up in what looked like an overfull cavity. So that is correct from what you said. Ill get a look at the rear brake lines, but im betting its the master cylinder gone bad.