Magnum Truck Racks Universal Rear Cargo Rack Black Model 667111Magnum Truck Racks Universal Rear Cargo Rack Black Model 667111 Choosing the right size is important to get the best Magnum rear rack experience possible. Please note the size of rear rack to match your current Magnum truck rack is determined by measuring your truck rack from the mounting foot to the top of the rack"if that measurement is 11" then you will purchase a 11" rear rack. Magnum's standard universal aluminum rear cargo rack fits most pickup