MAC Tools FWB2740 Combination 4WD Wheel Bearing Locknut Tool. New old stock. Never used. Some light surface rust on the inside bottom of socket. 6 slot application on '78 to '89 3/4-ton Ford & '73 to '81 GM 3/4 and 1 ton 4 slot application are '60 to '89 GM 1/2 ton. See pictures to determine condition for yourself.