S351 or S390?

A quick learner from California says:
Hi,

I read about the different bottom shoe for each. Can you help me determine which one I need? What part do I measure to determine the bottom shoe?
The stamp on it is 2740.
And I also need that piece of metal (stopper?) for the repair. Thank you in advance for your help.
Thumbnail of the uploaded file named 2D541CEC-0850-44F3-9694-20EBDA28FE2F.jpeg
Thumbnail of the uploaded file named A7DBD1EF-1AF4-453C-A77E-1724354FAA63.jpeg
Thumbnail of the uploaded file named C4E79381-DC7B-4CF0-A846-15EB16E67D2C.jpeg
Profile picture of Paul
Paul from SWISCO responded:

Many thanks for writing in. From your photos, it looks like you need S390-28 Channel Balance. Please compare to your old balance to be sure. The stamp option will be 2740. If you need new Take-Out Clips, see our 16-002.


A quick learner from California says:
Thank you, Paul. I'll place the orders accordingly.
Profile picture of Paul
Paul from SWISCO responded:

Excellent. If you have any other inquiries, do not hesitate to ask us. Many thanks.

How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Replace a Broken Take Out Clip
How to Replace a Broken Take Out Clip
VIDEO
WATCH >
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.