[JAR0023]

I'm no expert but let's rule some things out. Does it happen when you turn the wheel to lock either way or only to one side? Which side? Diveway flat? or angled up or down? Have you turned your wheels to lock, gotten out and checked to see if your tires are rubbing on anything inside the wheel wells? You said the ball joints and wheel bearing are good. Are they new? How about the tie rods? Could also be the universal joints in the steering shaft. When you say pothole does the car jump/jerk/shudder? That makes me think the tire is catching on something. All the joints mechanical parts might pop, click etc., but I can't imagine them transferring motion to the car. -J