Channel Balance Identification

A contractor from Burke, VA says:
August 2, 2014
I need a replacement for a channel balance. The marking on the balance reads: "36 4 GO CALDWELL". The overall length of the entire balance with shoes included is 38-inches. The width of the plastic shoes measure to be 15/16 of an inch. The length of the metal balance without shoes is 37-inches long. Thank you for your assistance.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
August 5, 2014
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.
Comparison of 15-004 and 15-005
Comparison of 15-004 and 15-005
A quick learner from Clearwater, FL says:
August 11, 2014
Trouble with size of the Channel Balance Shoe. Resembles 15-005 but is less than 1" in depth. It is more like 7/8 or 15/16.

Is there another size avail? These go in ALCAN windows
Profile picture of Tom
Tom from SWISCO responded:
August 11, 2014
I don't know of any shoe that has less than a 1" depth. I think it's more likely that your shoe used to be 1" deep, but simply wore down with age and use.
Winged Channel Balance Shoe, 1-3/32" Depth
Winged Channel Balance Shoe, 1-3/32" Depth
15-004
$0.74
Winged Channel Balance Shoe, 1" Depth
Winged Channel Balance Shoe, 1" Depth
15-005
$0.74
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
VIDEO
WATCH >
Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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.