DRIVING IN A SINGLE LANE PORTION OF I80 AT THE 97 MILE POST. A TRACTOR TRAILER MADE A ROLLING STOP AT THE ON RAMP AND SCARED THE DRIVER IN FRONT OF ME. THE LADY HIT HER BRAKES HARD. I NATURALLY DID THE SAME ONLY MY PEDAL WENT TO THE FLOOR AS I HAD TWO RUSTED BRAKE LINES,ONE FRONT AND ONE REAR,BLOW AT THE SAME TIME. I MANAGED TO SWERVE AND GET BETWEEN THE OTHER PICKUP AND THE TRACTOR TRAILER ONLY HITTING THE PASSENGER SIDE MIRROR ON THE OTHER PICKUP. I HAD TO USE THE EMERGENCY BRAKE TO FINALLY STOP AND HAD TO HAVE MY TRUCK HAULED HOME. I CAN NOT BELIEVE THAT FROM THE NUMBER OF THESE BRAKE LINE FAILURES LISTED ON THE INTERNET AND AFTER TALKING WITH MY GARAGE ABOUT THE NUMBER OF THESE GM TRUCKS THAT HAVE HAD THE BRAKE LINES FAIL THAT NOTHING HAS BEEN DONE ABOUT IT. I HAVE TWO OTHER VEHICLES BOTH OLDER AND WITH MORE MILES ON THEM WITH BRAKE LINES NO WHERE NEAR AS BAD AS THE ONES ON MY TRUCK. *TR