New (to me) truck. Need help with passenger door lock.

[geod919]

Don't worry, I'll have pictures up soon enough, but it's a pretty run of the mill white '81 3/4ton with a 350/4speed/unknown transfer/14bolt rear.

Anyway, I'm probably going to have a lot of questions, first being, My passenger door lock won't stay unlocked when I close the door, it falls down. I fished around the bottom of the door, and found a small spring with maybe 1 or 2 coils, and hooks at 10 and 2 o' clock. Is this used to keep the lock stationary? How would I go about getting it re attached? Can you provide pictures? Please and Thank you if anyone has any answers.