This Tool Is Designed To Remove And Install The Hub Nut On These Axles, Which Is Critical To Maintaining Proper Preload On Axle Components. Failure To Use The Correct Tool Can Result In Premature Wear And Reduced Component Life. Removes And Installs The Hub Nut On Gm 11.5 12.0 Rear Axles. Services Hub Nut Used On 2020 Chevrolet Silverado Gmc Sierra 2500/3500 Hd Trucks 11.5 12.0 Axles With Rear Dual-Wheel Drw Hubs. Shallow Depth Design For Increased Load Clearance. Pin Size Ensures Proper Connection Of Axle Components. Features: Gm Hub Nut Remover Installer. Durable Construction. Specs: Weight: 1.3 Lbs