Get the 17mm ball joint from Kerscher!!! The homemade shim, which should be 2mm, is VERY dangerous and if it fails the control arm will come off the spindle and you will loose the ability to steer the car. The strut tower will be all but torn off the car, the wheel will be forced into the fender and body causing damage. All of this is before the car evently crashes into something because you can't steer it. Is your car and more importantly your life worth about $75??? You guys need to remember that all these cutting and welding modifications to the suspension can be a dangerous situation.