Yukon Performance 2-1/16" deck steel spool for 8.75" Chrysler with 30 spline axles. Spool uses 2.050" journal bearings (LM104949/12). Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects.