The Ken-Tool Pilot Sleeve is a line of wheel centering sleeves for steel or aluminum commercial truck steer wheels, drive wheels and inside/outside dual wheels which use two-piece flange nuts. The sleeves are designed to correct off-center wheel stud alignment on wheel mounting holes, which if uncorrected, can lead to out-of-tolerance radial wheel runout, the company says. The sleeves are made from durable, non-corrosive mil-spec grade polyamide polymer, and the self-sizing sleeves take up the gap between the 22mm wheel studs and the 26mm wheel mount holes. These patent-pending sleeves are available in a 6-pc package (No. 30331) and in bulk pails of 100-pc (No. 30332) and 1,000-pc (No. 30333).