Brake Disc Caliper problems of the 2004 GMC Sierra

I was driving down route 24 in lewes, delaware approaching a yellow light when the car in front of me stopped. I applied the brakes and they completely failed despite putting the peddle all the way to the floor. I was forced to veer onto the shoulder then into a farmers field in order to slow the truck down enough to force it into park. Apparently the hydraulic brake lines on these trucks are completely exposed to the elements and have a history of failing. Once that happens, the rear calipers lock up and there are no brakes at all switch can cause a crash. There is no warning given until the hydraulic line snaps and the fluid is released. My truck has never been in an accident and has low mileage for its age. It has always been well maintained and is not a work truck but merely a personal vehicle. In addition, I am on my third transmission do to the poor selection gm made of putting the s-10 pick up transmission in a substantially heavier truck.

When coming to a red light I tried to stop my truck. Upon pressing the brake peddle the first time I started to slow down. Upon pressing the brake peddle the second time, the peddle when to the floor and did not slow me down. I had to run the red light and us my e brake to slow down and finally stop at a gas station. While waiting for aaa to pick me up noticed brake fluid coming out from under drivers side. Truck was towed to my son's house. After looking under the truck he told me the brake lines from the front of the truck had broken. He suggested we replace all the brake lines, which we did. All the original lines were rotting away. When we removed the brake lines they all broke into pieces . We replaced all the original lines with stainless steel lines at cost of $400. 00 plus I found a front and a rear calipers frozen, so I replaced all the brakes and calipers. There is no way the brake lines on a 8 year old truck should be found in this shape. The original lines looked like aluminum coated steel.