Can you help me identify these parts?

A quick learner from New York says:
Hi ... I am in need of all these pieces pictured. The only part I see a number on is the coil balance. I see the related parts that are used together but on the coil cover I believe it's called there is a narrow and a wide to choose from. If they both work with the 170 series coil why is there a narrow and a wide? How can I figure out which one I need? Please send a list of the parts I need that I should purchase. Thanks so much!
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Casey from SWISCO responded:

Hello,

It looks like you have an old-style Simonton balance. Take a look at the video below that shows the parts that we recommend to replace your assembly, as well as the installation process. Thanks for posting! 

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