FIRST INCIDENT OCCURRED WHEN VEHICLE WAS TRAVELING 45 MPH. BRAKES WERE APPLIED TO SLOW DOWN BEFORE A CURVE. AT THE POINT THE FRONT WHEELS LOCKED UP AND THE VEHICLE BEGAN TO ROCK BACK AND FORTH AND SWERVE ON THE ROADWAY. TO PREVENT A ROLLOVER THE VEHICLE WAS STEERED OFF THE ROAD WHEN IT JUMPED AN EMBANKMENT AND PLOWED THROUGH 25 FEET MUD AND BRUSH BEFORE COMING TO A COMPLETE STOP. THE BRAKES WERE COMPLETELY INOPERABLE. THE VEHICLE WAS SHUT OFF AND LEFT UNTIL IT COULD BE TOWED OUT. AFTER A FEW HOURS THE CALIPERS RELEASED. THE SECOND INCIDENT OCCURRED WHEN VEHICLE WAS STOPPED AT A STOP SIGN. WHEN ACCELERATED WAS PRESSED THE FRONT WHEELS WERE LOCKED UP AND THE BACK WHEELS WERE SPINNING. VEHICLE WAS PUT IN PARK, SHUT OFF, RESTARTED AFTER A FEW MINUTES AND CALIPERS WERE STILL LOCKED UP. VEHICLE WAS TOWED HOME AND CALIPERS RELEASED AFTER A FEW HOURS. CAR HAD ONLY BEEN RUNNING FOR ABOUT 30 MINUTES WHEN THIS HAPPENED. AFTER DIAGNOSIS IT WAS DETERMINED THAT THE BRACKETS THAT HOLD THE BRAKE LINES ON THE FRONT FAILED AND WHEEL ROTATION WERE THROUGH THE LINES WHICH CAUSED THE BRAKE LINES TO INTERMITTENTLY COLLAPSE. ALL BRAKE LINES, CALIPERS, TIE RODS, SHOCK/STRUTS, BRAKES, ROTORS, UPPER CONTROL ARMS AND LOWER BALL JOINTS HAVE BEEN REPLACED ON BOTH FRONT AND REAR. VEHICLE HAD APPROXIMATELY 180,000 MILES WHEN BOTH INCIDENTS OCCURRED 3 MONTHS APART.