AMPRO T72044 1/2 Ton 4 Wheel Drive Bearing Locknut Socket 4 Lug Removes and installs 4 slot front axle locknuts Heavy duty alloy steel Reinforced outer lug sleeve for tough applications Use on  ton 4 wheel drive vehicles Specific applications are the 1960 to currents  ton Chevrolet and GMC vehicles, and 1966 to current Broncos and Blazers