What's the correct finish for the front wheel hubs on a disc brake car, natural cast iron? Car is an 11B 67 LOS
I believe you are correct.
That's what I used also.
Cast iron on the hubs, if not mistaken the brake rotors were Riveted and the rivets were oil blackened steel.
Not sure what you mean by riveted, James. The rotors are secured to the hub with blackened grade 8 bolts (I assume we are talking about a 2-piece rotor/hub assembly).
Mike