Abstract: A method for shaking vehicles comprises driving them over a series of appropriately spaced-apart, mutually parallel bars to vigorously shake the wheels, undercarriage, and body to free them of dirt, gravel and debris. An apparatus may have bars with the appropriate spacing. A track may include a frame and the spaced-apart bars may form part of the frame. The track may be large enough to accommodate all the wheels of a vehicle at once. Alternatively, smaller tracks may be flexibly connected end-to-end to form a shaker that will receive right and left hand wheels of the vehicle on respective rows. The shaker may be deployed onto a bed of aggregate that is sufficiently coarse to allow the fallen dirt to sift or be washed through the bed of aggregate. The aggregate may also assist in holding the shaker in place and may provide ramps at the ends of the shaker.