Patriot windows failed parts

A quick learner from North Carolina says:
September 9, 2019
I have year 2000, about 35 x38 widow with failed balance, and parts

How do I determine what I need
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Bob from SWISCO responded:
September 13, 2019

Thanks for writing in. This old crossbow balance can be replaced with our Series 795 Channel Balance. See the video below for details. 
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