Access Policy / Windchill 8.0

Since we have upgraded to Windchill 9.1, I have removed users from Product & Library Teams in our old Windchill 8.0 system. There is still one Product that I need some users to have access to.

My problem is that users can still see and download documents in Products they don't have access to. Can anyone help me to what access rule I need to modify to turn off document access?

Thanks in advance, Kathy