Wide Application: Fit for GM 2020 and Newer Silverado and Sierra 2500/3500 Trucks with 11.5″ and 12″ Dual Rear Wheel Axle Hubs. Also work on other vehicles with 2.97” O.D. Axle nut. Feature: Full floating hubs are held on with a circular nut that is engaged by the 9 pin socket for removal and installation. 1/2” Drive. Installation: Easy to Operate. No special tools needed. 1) Align the sockets pins with the notches on the hub nut. 2) Securely attach the socket to a 1/2” drive ratchet or wrench. 3) Apply appropriate torque to remove or install the hub nut. Superior Material: .