Dave


Sure, I think we can help. See our 15-175 pivot shoe, 26-226 pivot bar, and Series 152 coil spring. Let me know how well this hardware matches your existing parts.
UPDATE 2023: The 15-175 has been discontinued and is no longer available. However the 15-177 has the exact same width and thickness, and also makes use of our Series 152 Coil Balances and accessories. Therefore it is a 1:1 replacement and based on customer feedback it works perfectly as a substitute. Let us know if you have further questions!
There should be a stamp on the old springs you can use as a reference. If there is not, or you are uncertain, let me know the exact weight of the window sash, and we can work out the spring weights needed.
In that case, I'd recommend our S152-7. Each of these can carry 7 pounds, so two working together can carry a 14 pound sash. This is close enough to your exact sash weight that it should work perfectly for you. Let me know if you have further questions!