I have a squeak coming from somewhere. I cant tell if it is coming from the transmission/tranfer case area or if it is coming from my rear end. My exhaust is cut at the down pipe and I am rolling on noisy mud tires so it is hard to diagnose exactly where it is coming from. It sounds like a ujoint going bad, but I replaced them about a year and a half ago and they have absolutely zero play in them. Any ideas?

 

Had same problem, take a look at the thread here : Squeaky U-Joint replaced still small squeak until driven awhile