Front or rear ?

Sorry front. Not the ball joint, eccentric style.

I have them on my car. The upper control arm unbolts from the strut tower inside the engine bay. 2 bolts. You unbolt those from the upper control arm then bolt in your new ones onto the control arm and re-attach it to the strut tower, then take your car for an alignment because it wont be right.

Here is a pic

Awesome thats what I need to see thanks 1995silvergst.