BendPak RJ45W Rolling Bridge Jack 4,500 lbs. CapacityBendPak RJ45W Rolling Bridge Jack 4,500 lbs. Capacity Full Wheel Service Capability The BendPak RJ45W rolling bridge jack is designed to hold up to 4,500 lbs. and features easy to roll wheels that make sliding simple between the four post lift runways. Minimum drive over height of 4. 5", rubber contact pads, high pressure hydraulic unit, and stackable adapters. Use this 4 post bridge jack with your BendPak HD 7, HD 9, and GP 7 series four post car