7 coil spring and pivot shoe

A quick learner says:
Not sure what coil I need? See photo
Thumbnail of the uploaded file named image.jpg
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Casey from SWISCO responded:

Hello,

It looks like you have an older version of our 15-180 pivot shoe, which uses the Series 190 coil springs. It looks like the coil in your photo has a 7 stamped on it, so you would need the S190-740. Thanks for posting! 

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