Premium grade Stainless steel Lifetime warranty 30 splines One ton hub Sold In Pair Mile Marker Supreme Locking Hubs help to engage/disengage the front wheels from the front axle shafts, protecting the shafts from wear and tear. Made using a new process of die-casting aluminum into a pre-made stainless jacket, these hubs provide strength and corrosion resistance. Built to exacting standards, they feature three-quarter turn engagement, which is easier to engage than quarter-turn hub mechanisms.