Balance shoe 9/16

Thanks for contacting us. I recognize this part. This is kind of a weird pivot shoe. The window manufacturer designed it so that it could install during the assembly of the window, when it was dropped down the track before the top of the window was screwed on. I believe our 15-106 and 15-107 bottom shoes can replace it. You can twist the shoe in the track without cutting the frame or taking the window frame apart. The cam for both would be our 15-124 and the brake is the 15-054.