Friday night on the way home from work in my 2003 avalanche z71 at about 60 mph I hit the brakes the truck gave a shudder and the pedal went to the floor with the brake light coming on truck did not slow down. I was able to get it stopped and when I looked under it there was brake fluid dripping from everywhere. I blew a line at the front of the ABS block spent the next 3 days getting parts, replacing lines and bleeding brakes. Just happy I was able to get stopped without hitting anyone or anything