Guide/pivots aluminum sash

A contractor from Erie pa says:
Please help! I have a customer with older aluminum sash that most of these guides are broken and cannot open windows properly
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Tom from SWISCO responded:

These windows are definitely old. It looks like you might need new pressure shoes, though I'm not certain if we'll be able to supply an exact match. Consider our 37-012 and see if our dimensions match up to yours. If not, please let us know how they differ and we can try to find something better.

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