OTC 7158 Hub Locknut Socket Wrench Services 1985-1/2-95 Ford F-series HD 3/4 and 1-ton Dana 50 IFS of Dana 60 front axle Services 1982-90 GM HD 3/4 and 1-ton trucks 1994-newer Dodge Dana 60 with Cummins 1/2" square drive Lifetime limited warranty