# on larger window balance is 31 5 JX - CMC 7
# on the smaller window balance is 31 4 PG
The top and bottom are the same design in both
I need to replace the balances in 2 large AND 2 small windows
Milgard window balances

Quick Learner from Litchfield Park, AZ
Mar 1, 2023 4:38 pm
5 user uploaded images
4 Replies

Emily from SWISCO
Mar 2, 2023 10:29 am


Hello!
We appreciate you reaching out to us. Depending on the depth of the balance's bottom fitting, you have either the S380-32 or S385-32. Measure as shown in the image below to see which Series matches up best.
You'll also want to select the 3150 strength option for the 31 5 stamped balance and the 3140 strength option for the 31 4 stamped balance.
Let me know if you have any questions!

Comparison of the S378, S380 and S385 balance shoes.

Quick Learner from Litchfield Park, AZ
Mar 2, 2023 7:58 pm
Thanks for the info. Based on your reply, I've been able to determine the correct balances and have ordered them.

Emily from SWISCO
Mar 3, 2023 10:01 am


That's great news! Thank you very much for your order and please let us know if we can be of any further assistance.
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