Jackco 10 Ton Capacity 10 Stroke Hydraulic Ram with M/F Ram Adapters. Replacement for frame machines pulling towers and frame straighteners known as L’s. Pulling ground posts have different ram sizes. Avoid making mistakes, If you are not sure please feel free to drop us a message, we are here to help you get going. Plunger Diameter: 1.5. Effective Ram Area Sq. Operating Pressure PSI: 8950. Top thread is not removable. 1 pair male female ram adapter. Please measure you old piston and compare with the above specs. Please visit our store and. On the Auto Body Categorie to view more items.