1967 sliding glass door roller assembly

A home owner from Santa Cruz CA says:
November 6, 2018
We need to replace the roller assembly and can not find this part in stores nor online.
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Tom from SWISCO responded:
November 13, 2018

I'm afraid we cannot identify what you have from this photo. You're only showing us the inside portion of a roller assembly. There should be an outer housing still in the door. We have to see the entire assembly in order to identify a match. 
A professional from CA says:
November 13, 2018
81-258 or 81-258S are the only option to replace this older style roller and housing. Both parts must be replaced together. The old corner bracket/housing is no longer used.
Ador Hi-Lite Series 1200 Patio Door Roller Assembly
Ador Hi-Lite Series 1200 Patio Door Roller Assembly
81-258
$9.72
Ador Hi-Lite Series 1200 Patio Door Roller, Steel
Ador Hi-Lite Series 1200 Patio Door Roller, Steel
81-258S
$10.42
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