SGD rollers for a series 1200 door

A handy person from trumbull ct 06611 says:
the info i have, IS. mfg code 130-1
mfg code 130-1
series 1200
spec sgd-c20/sgd-c30
8'X 6'10"
i need new roller assemblies in hand before my attempt to replace the bad ones in the door, any help will be helpful, the current rollers are bad, they click and clack in motion, home is appx late 60's or early 70's, an all alum door, Help please
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Paul from SWISCO responded:
You are possibly looking for the 81-030 rollers. You will need to remove one of the rollers from the door and compare it with the 81-030 product picture to be sure.

If you need help or if the 81-030 is not a match, submit some pictures of the roller here for us to research.
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