Front end noise? CV joint? Bearing? Differential?

I have a 2001 Z71 extended cab with a 5.3 motor and auto tranny. With push button 4 wheel drive. I can hear a popping noise in my front left wheel when usually turning but sometimes straight line driving. Its not a real loud popping noise but really more like a clicking. It seems to be worse in the mornings when its cool. I just replaced the cv joint and inner tie rod because it had a little slack in it. While doing this I drained my front differential fluid and my magnetic plug had some shavings on it. Before replacing the cv joint I was hearing this clicking noise and also had vibration when braking. I thought it was the cv joint the whole time but now I don't know. The vibration has quit since the new cv shaft but the clicking noise is still there if not worse. The only other options are my wheel bearing or my front differential so I was wandering what your opinion was on it and if there might be a bearing in the front differential that might be bad. Thanks