Block and Tackles needed

A home owner from Austin TX says:
See attached photos for markings,
27" length (of metal portion)
9/16 by 9/16
User submitted photos of a window balance.
27D HC5 CMC 45
Profile picture of Tom
Tom from SWISCO responded:
Hey, thank you for your patience int his matter. We are still trying to find a replacement for this balance, but so far we have not had any luck. Could there be something else that goes with this balance that we should see? Maybe a shoe of some sort that attaches to that bottom nylon piece? Let me know!
A quick learner from Austin, TX says:
Here's the shoe and pivot pin
Thanks for trying to identify this.
A customer submitted image of their balance shoe.
Profile picture of Paul
Paul from SWISCO responded:
Ah, thank you. Alright, I think we may be able to work around this. We haven't been able to find your original balance, so we'll have to try to substitute it.

Take a look at our S770-27 channel balance with a 27D option and review the details. Is this the right sized metal channel? Would the strength of the springs support your sash weight? If so, then I think you could use this with our 15-029 pivot shoe and 26-021 pivot bar. Let me know what you think, or if you have any other questions.
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