2003 Chevrolet Silverado 3500

FIRST FAILURE WAS THE DUAL BRAKING SYSTEM I WAS HOOKED UP TO A TRAILER AND STARTED DOWN THE DRIVEWAY (ABOUT 0.4MILE LONG) AND STEPPED ON THE BRAKE PEDAL WHICH WENT TO THE FLOOR BOARDS. THERE WAS NO STOPPING EFFORT FROM THE BRAKES. I USED THE MANUAL CONTROL OF THE TRAILER BRAKES TO STOP THE VEHICLE. BOTH BRAKE LINES UNDER THE CAB AREA HAD RUSTED OUT AND RUPTURED AT THE SAME TIME. HAD I BEEN ON THE ROAD AT SPEED THIS WOULD HAVE BEEN A CRASH. THE DEALER WHO PICKED UP THE TRUCK COMMENTED THAT THIS HAPPENS "SOMETIMES". HE REPLECED THE LINES WITH NON-GM ONES SO THEY WOULD LAST LONGER. THIS WINTER I WAS HAVING TROUBLE STARTING THE TRUCK IN COLD WEATHER AND NOTED THAT I NEEDED TO OPERATE THE MANUAL FUEL PRIMING PUMP TO GET THE TRUCK STARTED. (TRUCK IS EQUIPPED WITH THE OPTIONAL DIESEL ENGINE. THE DEALER WHEN WORKING ON THIS NOTED THAT THE LINES WERE VERY RUSTY AND NEED TO BE REPLACED. MY SAFETY CONCERN THIS TIME WAS THE SMALL AMOUNTS OF FUEL WEEPING OUT OF THE RUSTED AREAS UNDER THE HOOD NEAR THE EXHAUST. AND ONTO THE GROUND. IT SEEMS THAT THERE IS A GREAT AMOUNT OF RUST OCCURRING ON THE BRAKE AND FUEL LINES. THIS WORRIES ME AS THE TRUCK ONLY HAS ABOUT 36,000 MILES ON IT AND I LIVE IN A STATE (VERMONT) THAT USES SAND AND NOT SALT ON THE ROADS AND TRAVEL ONLY MINIMALLY IN SNOW WITH THE TRUCK. WHEN I WAS HAVING THE FUEL LINES REPLACED AND WHILE THERE THE OTHER TWO CUSTOMERS IN LINE WERE ALSO HAVING RUSTED BRAKE LINES REPLACED. SEEMS LIKE MORE THAN A COINCIDENCE. I HAVE REQUESTED THE RUSTED FUEL LINES FROM THE DEALER AND STILL HAVE THEM IF YOU WANT TO SEE THEM.