My brother spent a lot of money at Pep Boys in CA and received no real resolution to the problems. The PB people simply just threw parts at the vehicle and never fixed it.
They solved nothing and gave him a bill for a couple of thousand dollars. Please look into who is working on your vehicle. They seemed seedy and did not care to fix the problem but simply bill for whatever they did. I have worked with Firestone on my own vehicle and they did not fix it originally but made things right in the end.
Big difference compared with my brothers experience. I understand that mechanics sometimes make mistakes. That's fine. Just make it right and respect your customers.
Pep Boys failed big time here.