My 200k 4x4 LT trim 350 chevy tahoe has developed this squeak/scrunch when you take off from a stop. You can be going straight or turning it does not matter. Changed differential fluid last week and it was mostly clear with no grit that I could feel. Front end is tight after pulling/prying on the various pieces. Runs down the road just fine but the squeak/scrunch makes me think something is about to grenade. Thanks for the help.