Spiral balance

A handy person from Sebastian, FL says:
October 23, 2022
I just bought a manufactured home with spiral balances They work but are loud and sound like the spring or whatever is slipping. They are single hung non tilt. 2 if them have the spiral un attached. Do I need new ones ?
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Tom from SWISCO responded:
October 27, 2022

It definitely sounds like you need new balances, yes. I would recommend either our 3/8" diameter Series 400 or 9/16" diameter Series 500, depending on the diameter of the original balance.
36" Series 400 Spiral Balance
36" Series 400 Spiral Balance
S400-36
$11.52
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