Product Details: Update your truck or trailer with secure axles, with the Stemco 2-5/8"-16 Pro-Torq® Replacement Keeper that ensures you're Ready for the Road Ahead™. This replacement nut locks the axle in place, while maintaining the wheel bearing preload and tolerating incredible amounts of torque from large-sized vehicles. Engineered with precise measurements and enhanced reliability to provide easy installation with a socket on front and rear axles. FleetPride is your First Click in Heavy Duty®.