Heat it up. Same thing happens with rotors all the time, WD40 probably won't do anything. Use a propane torch and heat the ring up, careful not to burn any hoses or heat up any other parts. If it's aluminum it won't take much and it melts at 500 so be careful.
When you get it off remember to use anti seize (silver paste) next time you install them.
Last edited by sphelps; 05-05-2011 at 10:33 PM.
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