GearWrench 3937 4-Lug 4WD Spindle Nut Socket with 1/2 Ton Dana Remove and Install 4-Slot Front Axle Locknuts on: 1981-97 Ford F250- 350 Bronco With Dana Axle Dana 50Ifs or Model 60 Monobeam Axle Outer Adjusting Nut 1982-90 GM Heavy Duty 3/4- and 1-Ton Trucks