The adaptor is designed to take off the front hubs found on the 3/4 ton (2500 series) and 1 ton (3500 series) Dodge pick up trucks.
The adaptor was designed to cut the flat rate for changing out U joints, front differential service, ball joints and any front hub service.
The adaptor works on both 6-point fasteners for newer models and 12-point fasteners found on older Dodge trucks.