Hi all, I have problem with my tailgate. I have a 1984 CUCV (military spec) or Commercial Utility Cargo Vehicle

, anyway- A few days ago I was turning the key in the tailgate when I heard something fall inside & then when I pulled the key out the lock cylinder came out with it.
The crank wont roll the window up or down, and on top of that I have crap in it that will only come out the way it went in, thru the tail gate.
Is there any way to get the crank off from the outside to get the window to roll down?