Simon ton window balance

A contractor from Albany, NY says:
I need to replace the window balances. One is broken and obviously the window will not stay open. The window is a Simonton 33.75x60.5" double hung. I'm trying to figure out what balance will work for this window. They were installed in 2010.
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Jasmine from SWISCO responded:

Hey there, thanks for posting! You have a coil balance assembly that appears to be an older discontinued shoe that is no longer available. For this, we typically recommend our 15-192 Certainteed pivot shoe to replace your Simonton brand part but you may need to shave down the aligners from the shoe to install it into the window. Take a look at the dimensions to confirm if it may work for you.

detail of 15-192
detail of 15-192

We are now recommending the 15-259 pivot shoe, which should fit well in the track, along with the S159 coils springs and the 15-256 double support. To use this assembly, the original pivot bars would need to be replaced with our 26-083. We are still in the early stages of confirming if this replacement is a good long-term solution but we have high hopes that it will work with little need for modifications, if any. Take a look and if you decide to give it a try, we'd be eager to hear how it works out for you.

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