This in the '93 in my signature. For a good while now when I turn the truck off the key will not lock all the way back where it should. It'll stop about halfway between where it's supposed to sit when the truck is off and the point where it starts. Usually some jiggling will let it loose and it'll rest where it's meant to. Today it decided to be a real pain and wouldn't go, so with some frustrated juggling it came back with a abnormally loud "click". Came back to start it 30 min later and everything work but would get to the last point before it would start the engine and it wouldn't budge. After about an hour of swapping keys, mallet taps, and WD40, it finally turned over but I almost had to use two hands to move that little bit to get it to start. I've started it three times since then all ridiculously hard to turn. Everything else works like the gear shifter, steering wheel lock, electronics, etc. It turns smooth at all other points but the last one to start it. Did I break the tumbler?