On the end of the cam, the part that bolts to it and then the rotor in turn bolts to it. I just went out to a parts car i have but it was a e motor and the piece is a little different. I need the one that has a little cut out for the end of the cam. The spare i had from a e motor has a dowel hole in it and the cam has a corresponding dowel pin on it, i need the other type.
wtb driver for rotor 91 325i motor
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