WHILE DRIVING ON THE HIGHWAY APPROX 40 MPH, TRAFFIC IN FRONT OF ME STOPPED SUDDENLY AND I APPLIED AS MUCH FORCE ON THE BRAKE PEDAL AS I WAS PHYSICALLY ABLE TO. THE TRUCK BEGAN SLOWING BUT NOT NEARLY FAST ENOUGH AND I COLLIDED WITH THE VEHICLE IN FRONT OF ME. THE BRAKE PERFORMANCE SEEMS TO HAVE DECLINED OVER TIME AND I WAS UNABLE TO STOP IN TIME TO AVOID THE ACCIDENT. THERE APPEARED TO BE PLENTY OF ROOM TO STOP BUT THE TRUCK DID NOT PERFORM AS EXPECTED. I AM REPORTING BECAUSE I READ AN ARTICLE REGARDING A PROBE INTO ISSUES WITH THE BRAKES ON THE YEAR TRUCK THAT I OWN. AT THE TIME I DID NOT THINK TOO MUCH ABOUT IT BUT NOW I BELIEVE THAT THIS BRAKING ISSUE MAY HAVE DIRECTLY RESULTED IN THE COLLISION.