I was driving around on a bad right side ball joint for a long time. On left hand curves as suspension load increased @ about halfway compressed the ball joint would slip, my wheel would instantly tweek to much more toe in, and totally screw the balance of the car, from nuetral to oversteer mid corner in an instant.
I was driving very conservatively for a while before I had time to pull the LCAs, drill the rivets and put a nice set of Moog ball joints in.
Replaced my ball joints and am loving it again! Great feeling when your car feels new again