Roller tilt single spring

A handy person from Colorado says:
The existing spring in my roller/tilt assembly is 7/16" wide and approximately 39" long. It came out of a TRACO vinyl window. The existing track is only 9/16" deep and will not accommodate your replacement assembly with the 7/8" depth. Do you sell just the spring with the dimensions listed above?
The existing spring broke and that is why there are two coils in the photos.
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Tom from SWISCO responded:

Sure, this looks like a match for our Series 180 spring. This is designed to be compatible with the 15-087 shoe, which is a much better match (size wise) to your part.

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