Broken parts on sides of windows

A quick learner from Illinois says:
The spring covers and springs are in really bad shape on several of my windows. I'm looking to replace them as some of the plastic has deteriorated so badly that I can't open and close the windows.
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Tom from SWISCO responded:

Thanks for your patience during this busy season. We can definitely help with this, but I need a bit more information. Can you show me a clear picture of the pivot shoe to which the springs connect? Can you also tell me how thick the springs are? Thanks!

A quick learner from Illinois says:
The springs seem to be about 1cm wide, if that's what you mean.
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Tom from SWISCO responded:

That's a little over 3/8". Can you confirm that that's accurate? Assuming your spring is 3/8", then I recommend the Series 165 coil spring and 15-205 triple coil cover, since it looks like you have three springs per side.

A quick learner from Illinois says:
Yes, that's accurate. Thanks for the recommendation, I'll give those parts a try. Do I need to replace the pivot shoe as well while I'm at it? Or anything else?
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Tom from SWISCO responded:

Nah, it seems to be in good condition to me. If you wanted to anyway, though, then you can use our 15-199.

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