The Steer King No-Ream King Pin Kit is engineered with tight tolerances and all critical dimensions are inspected to enable a hassle-free installation. The Spiral Steel kit features a three-year warranty and the Steel Backed Bronze kit features a two-year warranty. The shop-ready box and parts tray keep the work area organized and parts free from debris. Thrust bearings come pre-packed with grease and the bi-directional grease seal installs up or down saving time. All kits are made of premium grade materials for high-performance abrasion resistance. All in-stock parts ship same day with low pre-paid freight.