For patio door

A quick learner from Illinois says:
One in pick has all bearings. The other has all the ball bearings missing. Bearings roll around the assembly. No numbers on assembly other than #1. No model or part numbers on door. Needing 2 assemblies
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Bob from SWISCO responded:

Thanks for writing in. I am afraid this old 'tank tread' roller is no longer made. However, we've had people successfully use our 81-279 as a replacement. The adjustment screw sits a little higher than on your old roller but the wheel rides better than the noisy treads. Take a look and let us know what you think.

A quick learner from Illinois says:
I will order 2 and try. Looks like this will work. I knew Swisco would have an answer!
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Bob from SWISCO responded:

Great! Thanks so much for the order, we appreciate it.

Please feel free to reach out if we can be of any further assistance.

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