Upper mirror slider - contractor mirror wardrobe fitting

A handy person from Tucson, AZ says:
May 6, 2015
Seeking slider replacement for top track. Track width is 1 7/8" wide. Existing pad is rivetted to holder that slips into vertical support. Vertical support is 7/8" x 7/8" square folded metal. Existing pad is 1 1/2" wide by 1 7/8" long. Like to have adjustable replacement with smoother action if possible.
User submitted photos of mirror closet door hardware.
Profile picture of Tom
Tom from SWISCO responded:
May 8, 2015
Thank you for posting. I'm afraid this part has been discontinued and is no longer available. However, see our 23-079. Could you possibly use this as a substitute?
Sliding Mirror Door Snap-in Guide
Sliding Mirror Door Snap-in Guide
23-079
$2.77
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