Steering Center Link Removal

I had a problem removing the center link from the steering gear (pitman) arm that has not happened to me before. I removed the cotter pin from the nut. I then went to loosen the nut on the pitman arm to remove the center link (tie rods are removed). The nut broke loose (I thought) but instead, the tapered shaft of the pitman arm is spinning in the center link. Any ideas what to do now? I may just need to carefully cut the nut off the threads. Thanks for any input.
Terry W.
Author: terrywalker