CTA Tools 4135 Wheel Bearing Locknut Socket - Ford is a 4-lug type socket designed to fit the locknuts on '81-'97 Ford F250 and F350, Bronco with Dana axle or Dana 50IFS or model 60 mono-beam axle outer adjusting nut. Use with 1/2-inch drive tools. Heavy-duty construction allows for strength and durability.