Originally Posted by vstech

I would get some brake cleaner and rinse off that wd-40 let it dry while you go to the store and get some pb blaster it's in the yellow and white can. put it on, let is sit for an hour, put some more on, then lightly tap with a hammer, put the wrench on and "pop" the wrench... if the wrenching has already damaged the nut, you may require locking pliers to get it off.
John