I am trying to finish up a nine year restoration project. I have a 41 1 1/2 ton super duty! ready for battle if it were not for the brakes. Here is the situation, new rear wheel cyls., & master, hoses and lines, rebuilt front wheel cyls,.and Hydrovac. NO visable leaks. I bled the lines starting with Hydro, front, then rear. I get af irm peddle, start engine, step on brake firm, step on peddle again brake goes to floor. What is up? Help! Joe
