Abstract: The thrust coupling has a thrust frame formed of three tubular sections which is mounted on the underside of a vehicle. The front of the thrust frame is suspended by chains from the front of the vehicle and can be raised and lowered by hydraulic cylinders connected to cross arms attached to the chains. The rear of the thrust frame is connected by a parallelogram arrangement of links in which a shock absorber is connected to dampen motion of the parallelogram arrangement of links.