Check you CV joints in the rear, then check for a loose wheel bearing on all four wheels. Also check to make sure you don't have a brake pisotn and pad hanging up, which in combination with a slightly loose wheel bearing could cause some noise during a turn. The only other thing that might cause misalignment during turns would be the rear carrier(so called beer can) bushings or the differential mounts. The latter two would also cause a sudden movement of the rear end during turns. Beer cans go at about 150K, and when they go, they really separateiternally and creat a crazy looseness in the rear end.