SWISCO - The Replacement Hardware Authority

Need replacement window guide assembly

A landlord from Plymouth, MI says:
Can you identify the part #27 4 Caldwell DM?

Existing window measures 28" long
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 351 or our Series 390 balances.

Now, as you can see, there is only one difference between these two Series, and that 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.
15-001 and 15-002
A quick learner from Plymouth, MI says:
Here are 2 photos with a closer view.

The "shoe" is 1 1/16" but maybe because of some wear from when it was new??

I noticed the shape is slightly different on the taper from my photo to yours but maybe it is not an issue. Thanks
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Great! I agree, I think your shoe was originally larger and just wore down with age.

The shape shouldn't matter too much in this case. Yours appears very similar.
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