I am looking for a replacement to upper roller assembly. I have only one roller that has a 1/4 in. piece of the roller wheel missing. The door sliding, but makes a clunking sound when it rolls.
I the whole assembly has a nylon piece that attaches to back of door. If the piece is not too expensive, I might replace all four assemblies.
I have not taken door out of frame until I know that I have a replacement part in hand.
Thank you, Mike