Simonton Hung Window Balances

A quick learner from Reading PA says:
-I have Simonton Single Hung Windows in my home installed in 1994

-They have 2 types of spring balance mechanisms.
-Type 1 is mounted near the top of the window channel (the spring coil extends to Balance shoe)
-Type 2 is mounted in the middle of the window channel (The spring coil is self-contained inside it’s plastic housing).

-The Type 1 spring balances are all defective and need to be replaced.

-Can I buy the self-contained Type 2 and use them in the windows that have the defective Type 1?
See images of both types
User submitted photos of a window balance.

353889/01 Unit: 35.5000 59.5000
35S 55L G1: 31 5625 27 1875
Simonton Windows 9410172309 10/17/94 12
Profile picture of Tom
Tom from SWISCO responded:
Thank you for posting. I think it might be a good idea to replace the balance system with what was already installed. Please take a look at our 15-111 pivot shoe. This appears to resemble your own, but see what you think. If so, then you should also check out our Series 160 coil spring, as well as our 15-150T cover.
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