I helped restore a 1941 Dodge Powerwagon and there was a bolt on the frame that was like that. There was no way to get it out so we grabbed an old wrench and held it to the bench grinder til it could fit. It ruined the wrench but it was a lot easier than any other solution we could think of..
--Maximamike
"If you build it, someone will talk shit." -- FANTAZ(Power Supply Racing)