Hello, I'm Chris. Welcome and thanks for asking your question!
The spring sets against the trans case and the ball sits against the separator plate gasket.
If your asking about the solenoid filter, with the separator plate mounted then the filter is installed pushed into the plate towards the case.
so the ball sits in the filter part of the spring then correct?
I am not showing a screen/filter associated with the EPC steel ball and spring.
The spring sits in the little filter thing.
I think your confusing the intermediate filter with the EPC, see below.
You are right