BOTH FRONT AND REAR BRAKE LINES BLEW OUT DUE TO ROT. I WAS TRAVELING ~50 MPH IN THE FAST LANE OF A HIGHWAY WHEN I APPLIED BRAKES AND THEY DIDN'T EVEN TRY TO STOP THE VEHICLE. RIGHT TO THE FLOOR. I WAS FORCED TO PUT THE TRUCK INTO THE CONCRETE DIVIDER AND USE THE PARKING BRAKE. I SIDESWIPED ONE CAR. AS THE POLICE TOOK MY REPORT ALL BRAKE FLUID LEAK OUT FROM MULTIPLE RUPTURES. *TR