Window balance system & pivot bars

A quick learner from Michigan says:
Dbl. Coil springs holder plastic cover is cracked off, # 4 is visible on both coils
Need to order 2 right sides & 2 left sides
(8 #4 coils) 4 dbl.spring plastic holders, 4 brake shoes, 4 bumpers. I have 2 windows panels to replace hardware.
& 3" pivot bars 20 pcs. I believe the window brand is Northstar
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Emily from SWISCO responded:

Thank you for reaching out to us! You have our 15-111 pivot shoe which is designed to work with the 1/2" Series 160 coil springs. We also sell the 15-150D double support and 26-241 pivot bar. Look over the specifications for these parts and see how they match up. 

How to replace a window coil balance
How to replace a window coil balance
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How to Replace a Triple Coil Balance System
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How to Replace Damaged Pivot bars
How to Replace Damaged Pivot bars
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Removing Rusted Pivot Bars
Removing Rusted Pivot Bars
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Removing a Triple Coil Window Balance
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