What type of coil balance do I have?

Thanks for contacting us Gerald. Your nylon balance components look fine. If you are just looking to replace the spring, our S180-8 coil balance should work just fine for you.

Ah, I see. Please give us a little time as we look into this, then. Your setup is a little different from what we carry and will require some research.

Thanks again for your patience. I'm afraid we haven't been able to find this exact pivot shoe housing. It seems similar in function to our 15-087, but the cam is so different that I'm not sure if it will work. Could you show us a picture of the pivot bar that interacts with your shoe? I'd like to see it out of the window. I'd also like to know its dimensions, especially its hole spacing. If we can replace that pivot bar with something that can work with the 15-087, then that may be the way to go.