Mazda Repair Questions? Ask Mechanics for Answers ASAP
Hello, I'm Brandon - mazda tech.
The rust and dirt is holding the arm in place.
You will need to spray some silicone or WD-40 soak the thread.
After 5 minutes of so then pull it out with your hand.
If your finger can't pull it out with a plier. Let me know if you have further questions.