Abstract: A method for improving the stability of steering of a motor vehicle equipped with radius members resiliently attached at one end thereof to the frame or body of a vehicle and at another end thereof to a vertically movable part of a suspension assembly of the vehicle, and a device for use according to the method. A flexible spacer of material such as laminated cloth impregnated with a tough rubber-like material is placed between a bushing surrounding a radius member and a restraining device holding the bushing on a radius member, permitting the bushing to be compressed axially along the radius member, thus reducing the amount of freedom of motion of the radius member in a direction generally longitudinal of the vehicle, without the necessity to remove and replace the entire bushing with a new one.