The Chassis Liner Heavy Duty Trucker Rack from Chief can service everything from half-ton pickups to triple-axle tractors and vocational trucks. The rack features 360-degree pulling capabilities and can be equipped with four, six or eight towers. The wheel-less towers ride on rails that circle the bed and the heavy duty loading ramps come with rolling jacks, so a single technician can complete the entire setup process. An optional winch assembly is available to pull disabled vehicles onto the bed. A roller assembly is provided for downward pulls and chain locks maintain tension throughout the pulling process.