Safely removes frozen hub assemblies instantly Will not damage axles Universal mount fits all axle bolted hubs (5, 6 and 8 lug hubs) 2-5/8" center to center hole pattern Mounts to (2) studs using supplied flange nuts Use with 5 lbs. hammer to knock frozen hubs out of axles 3/4" steel backing plate and reinforced striking plate for long life Shipping Weight: 16.1 lbs (7.3 kg) Flanged Nuts Included (2ea): 12mm-1.50 14mm-1.50 7/16"-20 1/2"-20 9/16"-18 5/8"-18