Casey from SWISCO responded:
May 23, 2023
Hello, With this combination of attachments, you could have either the S380-35 or S385-35 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. You'll also need 3450 spring strength options for your replacement balances. Thank you and let us know if you have any other questions or concerns. As for the take-out clips, you can start by comparing the specifications of the 16-002 commonly used with this type of balance assembly. Thank you! Comparison of the S380 and S385 balance shoes.
Alternate image for 16-002
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