MY COMPLAINT IS THAT GM USED SUBSTANDARD MATERIALS IN OF ALL THINGS THE BRAKE LINES! I LOST ALL BRAKING ABILITY WHEN ONE OF MY BRAKE LINES BLEW DUE TO RUST. HOW DOES THIS HAPPEN? I SHOULD HAVE HAD AT LEAST PARTIAL BRAKING ABILITY DUE TO THE FRONT AND REAR LINES BEING SEPARATE. LUCKILY FOR ME THIS HAPPENED RIGHT BEFORE MY FAMILIES THANKSGIVING TRIP, OR ELSE WE WOULD HAVE BEEN DOING 70 ON THE INTERSTATE WHEN THIS HAPPENED! PLEASE DON'T LET GM GET AWAY WITH THIS!