Pitman arm change

[67chevelle]

I've replaced just about every steering and suspension component on a '88 Silverado with 151k miles on it and the one thing left is the Pitman arm. On a 4X4, there is a pan welded to the frame that is just under the steering box. I don't see how there's room to pull the Pitman arm off with pulling the entire steering box out first. Anybody got an idea as to the path of least resistance (work?)

[Wingnut]

Got a pic?

 

I replaced the idler arm and pitman arm on my 89 a couple of times, and once on my 92. Never had anything in the way.