One other thing I noticed while putting this thing together was that this particular motor has split brushes. The ones that Helwig sells with the rubber tops. These don't have rubber tops but they are split brushes. I thought that the Helwig split brush was a new concept but its not. I think that the rubber top is but not the split brush. It is also interesting that the other starter/generators I have do not have split brushes. Anyway I thought you'd all like to know that split brushes are not a new fangled thing.