15-177 Shoe, cam & coil

A handy person from Missouri says:
In the attached photo, the shoe, cam and coil on the left appear to me to be intact and ok. The shoe on the right has a broken cam, but the coil seems ok. I understand that I can't merely replace the cam, but have to replace the whole shoe. It looks to me that the 15-177 shoe is what I need, but before I ordered I thought it wise to run it by you guys to get a second opinion. Thanks, all the info on your site has been incredibly helpful.
User submitted a photo of a coil window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! This shoe actually looks more like our 15-175 to me. Do you agree? If so, I also recommend our Series 152 coil spring.
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