Channel balances for Jordon windows

A home owner from Las Cruces, New Mexico says:
September 27, 2014
1992 Jordon windows. Two sizes: one 23" channel, one 29" channel. Please see attached photos. Ends are the same for both. The 23" channel is part of a 48"w x 48"h window. The 29" channel is part of a 36"w x 60"h window. Each sliding window is about one-half the window height.

Your recommendation on replacements for each will be appreciated.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
October 1, 2014
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 351 or our Series 390.

Now, as you can see, the only difference between these two Series is their bottom shoe. The Series 351 uses the 15-002 while the Series 390 uses the 15-001. 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 15-001 & 15-002
Comparison of 15-001 & 15-002
Each Series has a variety of lengths, including 23" and 29".
5/8" Top Sash Guide
5/8" Top Sash Guide
18-064
$1.12
Channel Balance Shoe, 1-1/8" Depth
Channel Balance Shoe, 1-1/8" Depth
15-001
$0.74
Channel Balance Shoe, 1" Depth
Channel Balance Shoe, 1" Depth
15-002
$0.74
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Replace a Top Sash Guide [1080p]
How to Replace a Top Sash Guide [1080p]
VIDEO
WATCH >
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.