I'm surprised no one mentioned this yet, but I have heard a Watts Link can really help. My car does the same if there is even a small bump in a turn. There is a thread on this that I started, or at least participated in, a while back. Sounded like the remedy, but I never got around to it. Would be curious if anyone else here is looking into, or better applied, a Watts Link - like Fays 2.