Our patio door is quite old but work well, however, one of the upper spacer or guide is missing therefore causing the door to wobble slightly. I don't have a picture of the part but I drew the top view and side view of what I am looking for as there is a place for two of these on the top of the door but only one seems to be there which makes the door a little wobbly.Home Depot and Lowe's do not appear to carry a part like this.
Do you have anything like this or something that could be adapted to solve the problem? Door is about 1.5" in depth.
Thank you