Window balancer shoe

Thanks for posting. At first glance, this pivot shoe looks a little unusual to me. Can you confirm its width and thickness? Can you also show me what it attaches to in the window track? I'll do my best to ID a replacement for you from there.

Thanks for getting back to me, and thanks for your patience. I'm still, not certain about the identity of this pivot shoe. I'm forwarding this discussion to one of my senior colleagues for further thoughts, and we'll get back to you as soon as we can. Thanks for bearing with us. 

Thanks again for bearing with me. I did a little digging on this. We have a very similar Pivot Shoe, the 15-259. This uses our Series 159 Coil Balances. Please compare and let us know what you think.