I have ICKY brakes. I say that because I don’t know what word is technically correct.
Typically I down-shift, so no real problem, but had to make an emergency stop, and took to the ditch. An alignment being much cheaper than repairs to 3-4 vehicles!!
I now know how to demonstarte a part of the problem to the mechanic.
On a level road, if I put it in 1st gear, and let the clutch out, and idle it up just a little to keep the engine from stalling, then with my left foot I smash down on the brake pedal hard, it takes 20 feet of travel before stopping.
Pressing on the brake is like trying to move a shock absorber.
A mechanic plugged the master cylinder, and with the back (drum) brakes (only) the pedal has a hard “stop.”
With the rear barkes pluged at the master cylinder, the pedal has no hard stop. Can keep pushing, and it will go almost to the floor.
With the back brake port still plugged, The mechanic clamped the front hoses at the lines, and there was a hard stop. Same test, but at the calipers, there again was a hard stopping point with the brake pedal.
The front calipers were replaced with Ford OEM parts (in case it was a poor Chinese copy, or “springy” steel).
Mechanic bled the p($& out of it.
Booster was replaced a long time ago.
Vacuum is good.
Mater cylinder was replaced w/ an oversize piston. About 1 year old.
Front calipers and hoses are new. 3 days old.
Rear brakes are newish, and “set up.” [by blocking the front brakes, the rear seem fine.]