I am rebuilding the flipper assemblies on a 1976 Gottlieb Buccaneer. I am having a lot of difficulty removing the set screws which hold the flipper shaft in place. Even if I decided to not replace the plunger (which I do want to do) I cannot get to the upper bushing without being able to disconnect the flipper shaft.
What is the best tool and method to get on these square shaped set screws to loosen them? I tried an ignition combination wrench but can get enough leverage on them.