I sent RockAuto a new ball joint that had a pin hole in the grease boot. I took the ball joint to FedEx on Wednesday and today on Friday, I have a new replacement ball joint on my door step. They actually shipped the new replacement ball joint on Wednesday as soon as FedEx scanned the old one! I got an email from RockAuto telling the new ball joint shipped as soon as I got home from FedEx. Unbelievable speed.