Question about 2009 Jeep Grand Cherokee

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Whining/grinding noise at deceleration

Just replaced front axle and front drive shaft w/CV joint w/Ujoint front drive shaft and had front differential rebuilt, checked bearings and replaced the worn wheel bearing, ...still making noise!!! Transfer case checks out ok. Fluid levels, I'm told, are ok. During deceleration, putting the jeep in neutral and coasting does not change the noise. Can't figure this one out.

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We have the same problem at our shop. We haven't rebuilt the front differential yet. We tried 3 different shafts on 2 different Jeeps and the noise is on both just the same. By greasing the front driveshaft cv joint, we got he noise to quiet some, but it is still way to loud. With the driveshaft out, the noise is gone. We are about to buy a new shaft from the dealer for $600. There are some service bulletins about some noisy driveshafts.

Posted on May 11, 2010

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Check rearend

Posted on Jun 15, 2009

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If the noise is on decceleration mostly like it is the pinion bearing in the diffrential. Could possibly be spider gears as well.

Posted on Apr 30, 2010

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