I have NOS oil sending unit and was hoping someone could tell me what, if any Chevelle's or Chevys in general it fits. The odd thing about it is its listed also in the Pontiac parts catalog but I haven't found any Pontiacs it fits neither. It shows it as a transducer with rally gauges. The part number has been superseded at least twice from 370801 to 547034 to 14039612. The one I have is the latest number. The difference is all the ones I've seen has a spade terminal on top and this one has an old style "nail head" top. The only thing I can figure is its an old unit in a superseded box buy GM.