Window sliding part

Hey, Stan. I feel very confident that we can get a working balance system for you. I'm just not sure what you have based on these photos.

Would it be possible to see a picture of the pivot shoe itself out of the window? You would have to remove the sash in order to access and remove it, but it would be a huge help. Pivot shoes are kind of a "key" that allow us to pick out everything else compatible with the balance system. 

Thank you in advance! You may also want to see the video below, it may help clarify what I mean.

Thanks for getting back to me, Stan. Perfect, that's exactly what we needed to see. This looks like our 15-192 Pivot Shoe. This pivot shoe is compatible with our Series 170 Coil balances. The coil spring in your photos stamped '408' can be replaced by our S170-408, which supports 8 lbs of weight individually. 

If your window only has one coil spring on each side of the sash, then you'll just need the Series 170. If you had two coil springs per each side of the sash however, you'll need the Series 170 as well as the Series 171; the Series 171 has a longer tongue to reach below the Series 170 and attach to the pivot shoe. The video below goes into further detail on this.

Our pleasure Stan. Let us know if you need anything else, and thanks so much for reaching out to us.