Product Details: The Stemco Pro-Torque Keeper Spindle Nut is designed to minimize premature seal failure and improve seal and brake lining programs. This spindle nut eliminates the potential for overtightening the jam nut and pushing the outer bearing cone out of position. With only one nut, you save time and effort trying to reposition multiple-nut assemblies. It is easy to install and provides a secure fit that helps ensure the longevity of your seal and brake lining programs. With its superior design and construction, you can trust the your vehicle running smoothly and safely. FleetPride is your First Click in Heavy Duty®.