Merzon double-paned Patio Door

A home owner from Northern CA says:
Have a Merzon double-paned Patio Door installed in 1984. Have no model # for it, but measures 7' -11" width x 6'-8" height inside of aluminum frame. Sliding part is exactly 4' wide. Lower track is being stripped of its metal, lot of shavings. Raised part of track that rollers slide over is 1/4". Not sure if rollers are stainless steel.
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Mike from SWISCO responded:
The 80-106 6' Sliding Glass Door Track is something that may work with your application-- but you will also want to replace your rollers. Please reply with photos and measurements of your track and roller assembly so we can research them for you.
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