OH MAN I wanna blow my truck up!

[72dually]

Normally Im patient, Im mechanically inclined, i.e. rebuild my own motors, swap/set up posi units in pegleg rearends etc, etc, but this fricken steering box has got me so pissed. The damn box was leaking at the shaft where the pitman arm attaches, so I go out to napa get the seal kit just for the lower end, remove the pitman arm, lock ring, and Ive spent 2 hrs trying to get the seals out, I poped the cover on top of the box, push the shaft up from the bottom a inch or 2 thinking the seals would slide off........NOPE.
Napa told me to turn the steering wheel from lock to lock and the seals would come out, that didnt work, what the heck am I doing wrong?? Do I need to pull the shaft completely out from the top, there were'nt any instructions in the box when I got home, and everythings closed now