In a message dated 5/10/2010 10:56:19 A.M. Eastern Daylight Time,
evanm@ATT.NET writes:

Wrap it  in a rag and use Vise-grips. The correct answer is to use two nuts
of the  correct threads, run against each other, and then turn it out. Good
luck on  finding two nuts that large, handy for use!

another way is to use a large ezout  .  works great for us   later  mark d