Tom from SWISCO responded:
August 28, 2019
Thank you for submitting your inquiry to our discussion board. It looks like you have the old Leigh bi-fold door. The tracks have been discontinued and the other parts are becoming harder to find. We recommend looking at our tracks 21-401 up to 21-404. The threaded adjusting pin will be our 21-002 and the other three spring loaded pins will be 21-007. The rubber bumper will be our 21-277 |