Crane Jack Jack Type Crane Jack Load Capacity 4 ton Lifting Actuator Hydraulic Maximum Height 34 3/4 in Power Source Hydraulic Minimum Height 19 3/8 in Center Hole Diameter 1/2 in Color Blue Compatible Crane Grainger Part Number 5Z010 Features Help In The Removal and Installation of Vehicle Component Parts and Assemblies Pin Mount Hole Diameter 5/16 in Stroke 15 3/8 in