Abstract: The mechanism is designed to control two critical performance characteristics of an automobile. The first is body roll or sway. The mechanism will counteract both the side to side roll and the forward roll encountered while cornering. In addition, the mechanism will counteract the forward roll encountered during braking. The amount of body roll allowed by the mechanism can be easily and precisely adjusted to optimize performance. The second performance characteristic is motion dampening. The mechanism acts to dampen an automobiles suspension during expansion of the suspension only. The amount of dampening can be easily and precisely adjusted to optimize performance. Adjustments can even be made by the driver during operation of the automobile.