Thanks for all the great advice! I got the job done. I held the pulley by taking a piece of angle iron. drilling a hole in it, putting a long bolt, with the correct compliment of washers on either side, into one of the threaded holes on the pulley. I then put a piece of wood between the pulley and the bottom "L" of the angle iron where it contacted the side of the pulley. I then braced the angle iron against the concrete floor. I went and bought the correct 22mm socket (just to be safe) and, with a 24" breaker bar, easily romoved the bolt. I found that I could put the bolt back on using the same piece, I simply had to drill a hole in the opposite end and brace it on the opposite side of the car.
Not sure that I have described this in a way you can visualize, but I thought I would try. Maybe it will be of some help to someone.
Thanks again for everyone's advice
Jere
P.S. I bent the bolt that I threaded in the hole a little bit, but I don't think think this would have happened if I had used the correct size washers that fit tightly. It did not bend enough to get weak or be difficult to remove.