hi, im new here, just trying to figure out whats wrong with my 95 jeep grand cheroke 4wd 5.2L. there is a strange noise coming from under the middle of my jeep, or so i think, i replaced the back two u joints to no avail. so i thought front u joints maby. but now i have the same squeek i had before, this squeek is constant only when driving and changes with the transmision shifts, but now my new noise, which worries me the most is a louder, what i would call a loud road noise, coming from the front end of the vehicle that comes and goes. usually only comes when you are accelerating, if you let go of the gas and take the presure off of the shaft it seems to stop till you give it gas again.... please help me fast, my wife is going to kill me. thanks