Abstract: A method and apparatus for towing disabled truck tractors including a towing bar connected to a disabled tractor's fifth-wheel hitch. The towing bar is positioned on the disabled tractor to extend in a rearward direction, downwardly inclined from the hitch pin toward the rear of the disabled tractor. A spreader bar is chained across the towing bar to hold the towing bar down when upward pressure is applied to the towing bar. A lifting bar is provided which is connected to a fifth-wheel hitch on the towing tractor. The lifting bar is positioned on the towing tractor to extend in a rearward direction, downwardly inclined away from the hitch pin. The downwardly inclined end of the towing bar is placed on the top of the downwardly inclined end of the lifting bar. As the towing tractor is backed toward the disabled tractor, the towing bar will ride up the incline plane provided by the lifting bar.

Abstract: An adaptor assembly for use with studs used to mount a wheel to a hub of a truck or other vehicle. The adaptor comprises a cylindrically shaped, partially hollow member which is initially screwed onto the wheel stud having one end abutting the hub or brake drum of the vehicle and completely surrounding the protruding wheel stud. The adaptor assembly having a diameter larger than the diameter of the wheel stud and sized to be slightly less in diameter than the corresponding wheel holes. The wheels of the vehicle are placed over these adaptor assemblies mounted on the wheel studs and a spring washer is then placed over each adaptor. Finally, a wheel nut, being screwed onto the exterior threads of each adaptor, is used to force the spring washer against the wheels being mounted to secure the wheels to the hub of the vehicle.