Brakes are hard as a rock and the brake pedal does not go back up when pressed?

Hi,

It sounds like something came apart in the booster. Do me a favor and try this. Loosen the bolts on the brake master cylinder. Don't remove them. See if the pedal moves easily a short distance where you have created play between the master cylinder and the booster. If you did, then suspect the Master Cylinder. However, I suspect it's the booster.

Do this and let me know the results.

Joe

See pic below. Note: you don't have to fully remove the nuts holding the Cylinder on. If you want to, gently remove the Cylinder away from the booster. Make sure not to damage the steel brake lines. Also, pic 2 shows the brake pedal and push rod that goes to the booster, make sure nothing has come apart there as well.