VMP Ultimate pulley puller and installer tool for Shelby GT500 will remove and install factory press-fit style pulley while supercharger is still installed on the car. This tool utilizes fine thread bolts, bearings, and a supplied grease pack which makes using this tool a breeze. Less expensive tools that use course thread bolts and no bearing can make a pulley removal and installation 10 times harder, VMP tools avoid these headaches due to its proper design. This puller is different from most on the market. The precision-machined aluminum clamshell that clamps onto the pulley and grabs it by the ribs, and leaves no marks. This prevents damage and applies equal pulling force all the way around the pulley, for easy damage-free removal. This tool also works with Lightnings, Roushcharged F150s, Roushcharged Mustangs (09+ M90 with a press-fit pulley or P51 TVS).