My Mid-year Corvette has Knock-Offs put on with a lead hammer, and once tightened there is a lock pin (drift pin) that secures the knockoff wheel nut to the axle to prevent the wheel nut from turning. Was replacing all the tires and of course had one wheel where I could not pull the drift pin out. Tried everything and also tried vise grips with a hammer...no joy! Was necessary to drill out the pin which ruined the knockoff wheel adapter, and the wheel nut That was a costly mistake ($300+).
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