BUMPER TO BUMPER TRAFFIC DURING RUSH HOUR, BRAKES WENT TO THE FLOOR CAUSING ABOUT A 10 MPH IMPACT INTO PICKUP IN FRONT OF US. GLAD WE WEREN'T UP TO SPEED WHEN THE BRAKES WENT. UPON FURTHER INSPECTION, I HAVE RUSTED BRAKE LINES, AND THE FRONT CROSSOVER LINE LEAKING PROFUSELY DUE TO CORROSION OF METAL.