Floating axles eliminate the axle shaft having to support the weight of the vehicle as well as hold the wheels on. Because of the high yield strength of the WARN axle, you'll also find the largest spline count possible, limited only by the differential. The internal splined wheel hubs eliminate bolts and are guaranteed never to loosen. Warn Industries also includes spring loaded lipseals in the wheel hubs and spindles. O-ring seals are used on the hub lock interface. WARN full floater kits with internal mount wheel hubs are now sold as a two part number system: a "foundation" kit and then your choice of drive flanges or hublocks. Drive flanges are designed for people who do not flat tow or who experience excessive driveline backlash with a mechanical locker.