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  1. L

    Front end groan in time with wheel rotation

    Just heard back from my mechanic. He says when he drained the diff fluid the color was graphite there was metal in the fluid. So the answer to the question is that the differentials are the issue as I feared. He says he can look for a good used one and do the job for 1,800 or 2,500 for a new...
  2. L

    Front end groan in time with wheel rotation

    I tried in reverse in both 4wd and 2wd and the sound is not there. Not sure what that means In regard to the differentials and the sound being in 2wd and 4wd would the front differentials be engaged but not powered in 2wd so hearing the sound in both makes sense? I am admittedly a bit out...
  3. L

    Front end groan in time with wheel rotation

    Zolt, I took a ride this afternoon and switching the truck in and out of 2wd and 4wd while also turning left and right. No matter what I do the sound is the same. I stopped by the local mechanic and he thought it might be the front differentials. He's suggested changing the differential fluid...
  4. L

    Front end groan in time with wheel rotation

    Yes it is selectable. There are 4 settings: Auto, 2hi,4Hi, 4Low. The sound imhearmhas been in the 2 Hi setting. I will try the car in 4Hi and have a listen.
  5. L

    Front end groan in time with wheel rotation

    Its a 4wd. I also thought wheel hub bearing as well but when I put up on jacks there was no wiggle when I tried to move the tire. Could it be the wheel hub even though there is no play in the tire? Wheel Hubs are not awful expensive. I know they have not been done before ( i am original owner...
  6. L

    Front end groan in time with wheel rotation

    I have a 2002 Yukon XL SLT with 146k. There is a groaning sound in the front end that is in time with the rotation of the wheel. As the car slows the sound becomes deeper and louder and I really hear it when I decelerate quickly (like coming off a highway). Note that I don't hear a grinding or...

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