BBK 94-04 Mustang Front Bump Steer Tie Rod End KitThe effect of bump steer is for the wheels to toe in or toe out when the suspension moves up or down. Bump steer is undesirable because the suspension is steering the car instead of the driver. To fix bump steer especially when lowering a car, you need to alter the height of the outer tie rod relative to the steering rack with adjustable tie rod ends, also known as a bump steer kit. BBK Performance Mustang Bump Steer Kits are available to fit 1979 93,