Torque Solution continues to push the limits of high performance aftermarket products with our "NEW" Rear Differential Lockdown System. This system was designed to completely stop movement of the rear Differential. This helps to improve transmission feedback when shifting, and gives the car a more solid feel under hard acceleration. Get rid of that clunk and soft feeling on gear changes. Get the power to the ground and rotating wheels instead of the chassis using that power. Developed to perform under the most extreme conditions, our Urethane Components bridge the gap between ordinary rubber and cheap plastics used in current aftermarket shifter bushings by offering a unique urethane specifically chosen by Torque Solution engineers to ensure product performance and reliability. All this makes it easy for us to stand behind our products with a lifetime warranty. - Improved 60fts / e.t's - Black Anodized 6061 Billet Aluminim - Eliminates excessive drivetrain slop - Reduces rear end float under acceleration - Solid feeling gear changes - Street and track torture tested - 75A durometer polyurethane - LifeTime Warranty - Made in USA