For past couple days I've been hearing a clicking noise in the front end of my '10 Taco.  This is more than just the click of brake pads.  It sounds more like when a kid puts a playing card on a bicycle wheel spokes.  Just does it when I take off at low speed and then stops.  48k miles on it, due for annual inspection on Friday.  Any ideas on what it might be?  Thanks in advance.
				
			
	