Abstract: Traction is provided for automotive vehicles stuck in snow, mud, and the like by a device applied over the outer face of the slipping driven vehicle wheel and having J-shaped traction fingers draped over the tire of the wheel and fixedly clamped on the tire by merely swinging a lever. The device has a mounting plate for overlying the conventional wheel disk or hubcap, three J-shaped fingers pivoted to the center of the plate and radially guided in 120.degree. spaced apart relation at the periphery of the plate with the cups of the fingers receiving the tire and presenting outer tread surfaces which will bite into the slippery road bed. One of the fingers is retracted on its pivot by a lever or handle effective to clamp all three of the fingers on the tire.