d41 8#31 8-85 , c136 #23 585 I need replacement numbers

A quick learner from shelby twp mi says:
August 5, 2013
Please email new replacement numberz thanks gregg
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Tom from SWISCO responded:
August 5, 2013
I'm sorry, is this an Andersen window balance? If so, how about our 24-837? This can replace balance boxes with the stamp 8#31.
Andersen Sash Balance, 823, 827, 831, 837
Andersen Sash Balance, 823, 827, 831, 837
24-837
$54.20
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