This Shelby Bolt-On Swivel Jack has a 2,500-lb. capacity. Square tube jack with 12-gauge steel. Heavy-duty copper infiltrated iron gears with extra thick cross section for improved strength. Oil impregnated handle bushing for easy cranking and long life. Heavy-duty ball bearings. Side wind. Top mounting bolt to top of jack: 14"H. Fully extended: 52-3/4"H.