Put a piece of paper on the hook and a drop of oil to hold it. See if it locks up tight, it may and the lever could still be left of center, not a big deal. If its tight after adding the piece of paper but the lever is left, the locking bolt and lug are showing wear, again not a problem. If the lever to left bothers you it can be fixed by adding to the bolt. Hard to say without seeing it.
Steve

http://www.bertramandco.com/
Booking African hunts, firearms import services

I miss Monkey Jim.