Compatible with 18780500Universal C-Clamp Allows the clamping of press frames and C-frame to be placed on a transmission jack Greatly facilitates the positioning of the components press frames when replacing bearings, bushings,load-bearing joints, etc. directly on the vehicle This tool can be adjusted androtated. The press frames can beplaced between the jaws Use with GO102 to suit transmissionjacks from other manufacturers Base diameter - 40.6mm