1934 steering box educate me before i dig in?

[sawzall]

so I have a 34 wagon, non running (im working on fitting the wood)
a few days ago i moved it and during that process i "lost" steering.. IE all the sudden the steering wheel lost ability to turn the wheel.

I know I am going to need to pull the box, what typically fails in these early boxes? ive only ever owned 40 and later boxes, (and one model a box) and I have NEVER taken one apart.


i found a exploded view of the box over on the hamb.. assuming this is correct

what are the first things to look at?
https://www.jalopyjournal.com/forum/...1-jpg.4258800/