I have noticed when I shift into third alot of the time I hear A clunk noise, sounds like a deep hollow noise. Also I always hear a slight hum around 1800 rpm in 4th and 5th and the tranny doesn't shift as smooth as I think it sould to be a new truck. I only have 20k on it. My psd with 150k and buddies 01 dodge with 120k shift way smother. It is like I can feel the clash of the gears in 3rd and 4th. Is this normal or am I overeacting since the truck is new and it just hasn't broke in yet.<br>Chase