Quote:
Originally Posted by The Maverick
That thread ends with an interesting thought about using a paper-thin gasket between the wheel and hub to prevent the galvanic corrosion. It would have to be moisture resistant as well in that location. Has anyone given something like that a shot?
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Corrosion is not the root cause of the clicking. The wheel is aluminum and the rotor hat is aluminum (at least on 1LE's). There is no galvanic corrosion there. The rotor hat is also anodized, and so will minimize galvanic corrosion between the rotor hat and steel hub. The root cause appears to be a combination of insufficiently torqued lug nuts and/or whatever grease GM was initially applying between the wheel and rotor hat. Ensure the wheel to rotor mating surfaces are spotlessly clean and the nuts properly torqued and that should be the end of clicking noise while turning.
Nigel