I'm nearing the end of my 67 coupe restoration, and after putting my locks handles, and lock lift in the door, I find that when the door is shut, the lock lift "hangs" and won't come back up all the way.  I have to reach inside the door (I haven't put the door pads back on yet), and trigger the lock from the inside.  Both sides now do it, they didn't before I started the work.  If I reach in there and hold the internal parts steady, it won't do it.  It feels like the whole assembly is a little loose in there, but I don't feel any screws to adjust and the drawings don't show a screw to tighten.   Until I fix this, I can't lock the car............

Any help is appreciated.

Bryan