Theoretical analyses and comparisons were conducted to achieve a suspension layout and alignment angles that would closely duplicate all aspects of the production vehicle except the reduced scrub radius. It was found that there is a reversal in direction of the moment-arm torque at the tire contact patch associated with the difference between positive and negative scrub radii. This difference was prominent during brake lead constant µ and the simulated split µ vehicle test events.

It was determined that with a positive scrub radius during split µ or bump steer driving events the moment will create a tow-out (negative tow) wheel reaction. With negative scrub during these events the vehicle, which would normally pull in one direction, is counteracted by a toe-in reaction at the wheel. In this way, negative scrub is sometimes seen as a "self correcting" suspension. The driver, however, may have to steer toward the pull side of the vehicle, although the normal reaction would be to steer away from it.