Need help on correct Part

Hello,

Since both ends of your balance have wings, you could have either the S380-37 or S385-37 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 36DS45 stamp code is normally rated for a 45 lbs. sash. We offer the 3670 strength options for a sash weighing between 42-45 lbs. We recommend that you weigh your sash with a bathroom scale to be sure the weight falls between our code. Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.