Droop is part of the problem, as is the spring setting (stiffness) in the rear. Does your car spin out in both directions when it diffs-out? Not knowing where the droop is makes it difficult. If you have a droop setting of 3 on the left rear, and 4 on the right rear, your car will probably diff-out turning right. One of the Associated plastic droop guages are inexpensive, and very helpful in getting your car set up properly. How do you check for tweak on your car.... just curious?