[greg64]

Wait a minute on the steering box. It's far easier to release the tapered joint at the other end of the pitman arm with a pickle fork. Unless, of course, you're looking to replace the pitman arm.

The way to get the pitman arm off is with a puller. You apply a fair bit of tension with the puller, and the tap the pitman arm from the side with a hammer. The puller alone won't do it, at least in my experience.