6 way adjustable seat track restoration

The seat tracks in my 1970 Challenger T/A were very stiff. I am having the seats re-upholstered, so I figured it was a good time to restore the seat tracks. I disassembled the 6 way seat track and found one of the zinc guides had a flange broken off. I did a search of the interweb, and did not find anyone that had these available. Does anyone know of a supplier or does anyone have one they would be willing to part with? See pics.
Also, I didn't see anything on the internet with...

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Author: challboy728