Originally Posted by
bootsmcguire
Something else to try is use a piece of an old leather belt and put it between the jaws of the largest vice grips or pipe wrench you can find and then clamp the ever-living piss out of it.
I have had some nuts where my wrench didn't want to go onto, but nothing I couldn't over come by tapping the wrench on and doing the "jiggle dance" and foxx puts it. I would plan on replacing the nut and lug with some of the trued ones from NSS if you are having serious issues. That way you are good to go.