New balance needed.




Thanks for writing in!
I recommend either our S380-32 or S385-32 channel balance with a 3150 stamp. To confirm which balance is the correct replacement, you'll need to confirm the depth of your bottom shoe. You may use the diagram below for reference.





The 19-005 top fitting being slightly above the metal channel would not cause this kind of damage. The top corner of your vinyl window sash being cracked, shows me your top sash guide is either broken or missing. The top of the balance should never press against the sash frame.
The 3150 stamp is a strong spring for a sash weighing between 28-32 lbs.
May I see your top sash guide?