noise???help

ohv_kj · **Posted:** Wed Jan 14, 2009 12:10 am

i thought i had a pro w/ u-joints...check and change, noise still there...checked and changed axle bearings, noise still there...took a part the t-case...new bearings and such, noise still there...had a tranny guy listen to it...he said it couldn't be coming form the tranny...now i only here it ounce i reach about 30mph+...it only changes w/ speed and not rpm...if i let off the gas...it goes away...it sounds almost like a bearing rattle and coming from the central of the jeep...i have taken the front drive shaft out and still here it...take out the rear and don't here it...no performance has been lost and the sound came after a hr drive sate for about 45 minutes and poof i here when i start driving again...any ideas???

long_tall_texan · **Posted:** Wed Jan 14, 2009 1:28 am

Rear diff maybe? Gears starting to whine? I had a bent rear axle on a Suburban once that acted that way too. Or bent rim? Slightly bent wont necessarily be out of balance enough for noticeable vibration, but noise will be present.

tjkj2002 · **Posted:** Wed Jan 14, 2009 9:54 am

Yep sounds like a pinion bearing going in the rear diff.

ohv_kj · **Posted:** Wed Jan 14, 2009 11:12 am

tjkj2002 wrote:

Yep sounds like a pinion bearing going in the rear diff.

i have change all of bearings in the rear...that's what i though initially...change them no sound change

long_tall_texan · **Posted:** Wed Jan 14, 2009 11:29 am

May be diff gears worn / not adjusted just right

noise???help

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