Such generally takes place when the screws holding the horizontal tracks get loose, causing the brace to wobble at the smallest abnormal resonances of the door. With misaligned tracks, the risk of the rollers coming off the tracks might get much greater. When straight tracks will be not made probably http://garagedoorservicenapervil31592.tribunablog.com/get-this-report-about-garage-door-off-track-repair-chatsworth-15412298