I am in need of an a6 crank, I do not want to purchase one that has been micro polished, or one that ever had a spun rod bearing. Does anyone know where I can purchase one that is new or pulled from a running engine? I see autozone, advance auto parts, napa etc sell them, they are made by a company called Hi-tech. It states they are remanufactured? Does this mean they had spun bearings and were polished out?