Most owner-operators and even a large portion of company drivers prefer to have their axles nice and shiny rather than the blah stock look. One of the most popular options on the road is the axle cover kit. These sets will cover the whole axle housing in chrome, on both your drives and steer tires. They're economical, too. Some of these axle cover sets will stay mounted to the wheel more easily than hubcaps or simple push-on style lugnut covers.