Window balancer replacement
Thanks for writing in! The window balances you are searching for an Extended-Travel Channel Balance and will need to be a custom assembly. I've forwarded a link with a quote for (4) balances, since you mentioned you need balances for two different windows.
The length of the metal channel of the balances should be 26-5/8", not including the attachments. Also, I did want to make you aware that they will have a different clip attached to the shoe. The one you have has been discontinued but the manufacturer has confirmed that the newer clip will work as a direct replacement.
You'll be able to use the forwarded link to review the quote and place your order.
Please don't hesitate to reach out with any questions you might have.