[SpEEdyBL]

I'd say adding overdrive to the rear would give you more on power steering if anything. More off power steering too. When power is applied, the rear wheels spin faster than the front wheels causing the tendancy for the car to swap ends. In fact, the rear wheels will always break traction first (both in acceleration and braking) because they change direction at a faster rate. Because the front end maintains traction for a longer time, you get more steering.