Mechanical stability system for allowing improved control of powered industrial lift trucks, sold as an integral component of powered industrial lift trucks; Tractors for agricultural purposes; Steering wheel attachment comprised of an electric motor and drive gear and a ring gear that when activated by an external controller, turns the steering wheel to effect automatic vehicle steering in straight or curved paths; Horns for motor cars; Trucks; Automobiles; Motorcycles; Amplified horns, namely, horns for locomotives; Structural repair parts for trucks, trailers, and other motor vehicles; Parts of motorcycles, namely, clutch cables; Parts of motorcycles, namely, brake cables; Antenna toppers, namely, attachments to the tips of automobile antennas