Window coil balance

A quick learner from Tacoma wa says:
My window coil balance is broken. I just ordered two of the series 160 balances (7.5 lb for a 14.5 lb lower window). However, It appears that I have four of the coil balances two on each side. So with that in mind and seeing the pictures what coil springs do I need and do I need to replace other parts. The part number on the plastic piece is 801020
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Emily from SWISCO responded:

Hello!

If your sash weighs 14.5 pounds, you can use (2) S160-3 3.5 pound coil springs on each side of the window which will total 14 pounds of overall support. Keep in mind, you only need to replace what's broken. You can re-use your pivot shoe if it's still in good shape. 

A quick learner from Tacoma wa says:
Thank you
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