LOST BRAKES WHILE DRIVING 35 MPH WAS ABLE TO STOP AND NOTICED BRAKE FLUID DRIPPING FROM ABOVE GAS TANK JUST FORWARD OF REAR AXLE ON DRIVERS SIDE. NEW BRAKE LINE WAS INSTALLED AT GMC DEALER IN JULY 2010 AFTER IT BURST GOING 45 MPH SAME PROBLEM AS IN JULY 2010 THAT CAUSED AN ACCIDENT WITH PROPERTY DAMAGE TO MY VEHICLE AND OTHERS PROPERTY AFTER SUDDEN COMPLETE BRAKE FAILURE. NEW LINE IS SEVERELY CORRODED AT EACH GREEN PLASTIC CLIP AFTER ONLY 7 MONTHS.