Do you sell the 26 3 JN Caldwell sash?

Hello, thank you for posting,

It sounds like you are in need of new channel balances. To further review, we will need to see the balance removed with clear images of the top and bottom nylon attachments. We will also need to see a picture of the inside of the metal channel where we can see the connection point of the spring and pulley system. Thank you! 

Hello, thank you for posting,

With this combination of attachments, you could have either an S380 or S385 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. 

The length of the metal channel excluding the nylon attachments should measure 27" long and you will need a 2630 stamp option. Please review and let me know if you have any additional questions. 

Comparison of the S380 and S385 balance shoes.