Hi Just arrived and with a huge problem , I need to change the ball joint on my 98 xantia, everythings was fine until I tried to unscrew it, has been changed before , is the one on the right hand side, I started doubting that had a reverse screw , but so far he won . I was unable to make it move even a millimetre, I pratically smasching it ,doesn't move , Anyone can be any help please the car is due an nct (mot) wendsday early.Is the one at the bottom of the caliper just beside the brake disck. Many thanks