I don't know about that, my truck is one of the nicest 100k trucks I've seen and the steering was nice and tight (just as in tie-rod wear, my truck had issues with wandering because of the balljoints). However, when I decided to replace the lower ball joints since I was upgrading everything else in that area, I found mine were completely shot. Not just loose, but they have verticle movement in them with me moving the joint by hand. I would imagine in an area with bad roads or with someone who just doens't give a flip about their vehicle, they would wear out sooner than 100k.If I had to say, I'd predict more ball joints are 150K sort of items, depending heavily on random chance and number of potholes in your county.
A one time click is probably a creak.It is a one time click. I am not positive, but I don't think it is related to speed. I only hear it when I turn left, but not all the time.
We may be a little early (not making enough noise yet), but you can check it by bouncing the front left corner up and down.Now I just have to hope that is what the problem is!