Coil Balance Parts

A handy person from USA says:
Please see the attached.

The shoe measures 9/16 ~ 5/8" x 1-7/16"

As you can see, the knotches has two knotches.

Looks like I would have to replace the springs and shoes.

Any suggestions?

User submitted a photo of a coil window balance.
Profile picture of Paul
Paul from SWISCO responded:
The manufacturer has actually discontinued your coil balance system. Now, they recommend our Series 152 coil balance spring. From your photo, it looks like it has a #8 printed on it. If so, I recommend our S152-8 coil spring with a 15-158 pivot shoe. Other parts you may need if they're broken or missing are our 15-143 support flange, 15-144 support cap, 15-145 support barrel and 33-072 screw.
A quick learner says:

How would I connect the spring tot he shoe, with the smaller screw? where would the barrel 15-145 be usd?

Profile picture of Tom
Tom from SWISCO responded:
Yes, you would attach the spring to the shoe with the screw. The barrel goes inside the spring and fits over the cylindrical protrusions in the 15-143 or 15-144.
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