Equip your truck with proper alignment and increased safety for the road ahead, with the OTR 7/8" U-Bolt Hi-Nut with Expertise Built In™. By securing the leaf spring directly to the axle, this replacement nut maintains the proper alignment and weight distribution of vehicles, trailers, and cargo mounts. Built with high-strength metal for augmented durability and resistance to extreme torque. FleetPride is your First Click in Heavy Duty®.