<p>VEHICLE BRAKE A power-operated brake or sprag to prevent a truck or other vehicle from sliding backwards on a slippery incline is disclosed. Prior brakes have not been adequate to prevent heavily loaded trucks from sliding backwards on icy hills. The present brake features a frame design which allows the ground-engaging legs to be lowered from a point directly behind the rear wheels of the truck. This configuration causes the added load of the truck to be transmitted through the braking legs to increase their braking effect and offset the tendency of the increased load to slide. It also allows the use of shorter brake legs so that the legs do not extend beyond the truck chassis when raised.</p>
