When your U joints are going bad on a 2002 GMC Yukon Will They Have A Sqeak Sqeal noise come from them ?

cracking and popping , chattering along with possible vibration at times, may go away completely, then come back, get the wheels in the back off the ground and see if there is excess play in the drive train is one way by shaking the driveline or twisting back and forth. Its harder to do with the wieght of the truck resting on it. a good mecnanic knows what to look for, and if you take it apart you can tell if you know what you are doing.