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How to Repair Bifold Door Top Roller Guide If your bifold doors have become stuck and squeaking, they may require some maintenance. They could require cleaning, lubricated or adjusted. The issue could be caused by an unfastened bolt on the top pivot or by the top guide roller. This kit includes all the hardware needed to restore your bi-fold closet door system to its optimal performance. Take the door off It may seem complicated and difficult to install an interna