6x2 axle configurations There are two general types of 6x2 axles. A tag axle is where the rear-most drive axle is non-powered, also referred to as a free-rolling or dead axle. A pusher axle is where the forward-most drive axle is not powered. The tag axle has been the most common. It is generally perceived to have traction issues in challenging conditions. Tire wear can also be an issue. All four rear tires are on the road at all times. Since The type of 6x2 configuration that makes the most sense for a fleet will depend on what the tractor-trailer is transporting, where the load is being transported, and how often the truck travels with a less-than-full load. April 2020 | VehicleServicePros.com 11http://www.VehicleServicePros.com