Well my truck has been making a weird noise for a couple of weeks now. I just got a chance to look into it. It was the transfer case. It was dry. I'm thinking the noise I heard was the chain. I inspected it the best I can. (Now that I think about it maybe I should have put a magnet in there to see what comes out.) Oh well, it's full now and the noise is gone. I didn't see any cracks and the plugs were tight so I don't know where the leak is. I'll have to find that. Anyway how much damage do you think I caused?