Locking Hub Conversion Kit for '94-'99 Dodge Dana 44.The Yukon worry free Spin Free Kit replaces the vulnerable and expensive factory unit bearings with tapered bearings and races. The result is not only a design which is easier and more economical to service, but one that offers significant increases in mileage per gallon. This hub kit also includes low-profile Yukon Hardcore premium locking hubs, giving you more driving selectability. This kit includes new wheel hubs, spindles, high strength Yukon 4340 Chrome-Moly outer axles, Yukon Hardcore premium locking hubs, Timken bearings, high quality seals and all hardware for installation. Wheel hub diameter on this kit is larger than stock. If your vehicle is equipped with the factory aluminum wheels, the center will need to be machined to 3.450" I.D to fit. The factory steel wheels will NOT work with this kit.