Upper door guide part?

A quick learner from Denver, CO says:

Hi, the attached image is of a plastic part that is mounted at the top of a sliding glass door. It seems to both guide the doors as well as prevent the door from being lifted out of its tracks. Do you have this part, I looked for it but could not find it. I'm the homeowner, working on reconditioning two sliding glass door units.

thanks,

Brian

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Tom from SWISCO responded:

Thank you for reaching out to us, Brian. We sell a couple of guides similar to this, but none are exact. Start by reviewing our 80-003 and 80-020. The 80-001 may also be worth looking at. See if you could use any of these parts to repair your door.

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