Im getting ready to rebuild one side of my king pins( the otherside is real tight) i have a 7/8 allen socket thats 3/4 drive...will that work..maybe with a lil heat..?..... i bought a yukon rebuild kit, wheelbearings, rotors, pads, seals, and axle joints...also last week i got a shakerbuilt steering arm, studs, nuts , sky draglink, rodends, pitman...a 1977 2wd hydroboost, steering box and pump.. i think pretty much covered... hopefully a good saturday job...