Balancer parts

A quick learner from Indianapolis says:
September 12, 2017
Im trying to identify this part, the balancer spring hooks to the top of it and the window sash piviots in it. Need help please.
balance hook
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Tom from SWISCO responded:
September 14, 2017
Do you think you could use our 15-104?
Caradco Friction Shoe
Caradco Friction Shoe
15-104
$1.95
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