Coil Balance Parts - Larmco Window

A quick learner from Columbus Ohio says:
Im attempting to replace some coil balances on an early 2000s Larmco double hung. We recently moved into the home and one boot is broken while the other sash has no hardware all together.

I recently purchased S140-6's assuming the pivot arm sizes were universal. My windows' arms are too wide to fit into the S140-6 boots.

Im looking for help in what to properly order this time. For my full replacement, it looks like I could use 15-156 and 15-157 for the coil cover and 15-175 for the shoe. Which 6lb rated coil should I use for my needed shoe?

Attached is a picture of the balance fully assembled and a picture with the coil cover separate.

Thank You

Thumbnail of the uploaded file named 20200626_113059.jpg
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Bob from SWISCO responded:

Sorry to hear the S140-6 didn't work out for you. You can view our Return Policy here. You are correct in your new assessment: you need the 15-175, which uses the Series 152 Coil Springs. If you need a 6 lb spring on either side of the sash, use the S152-6

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