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Old June 11th, 2018, 10:53
jeeplag jeeplag is offline
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Clunk noise when accelerating.

Hello all. I have 96 Jeep XJ 4x4 with the inline 6. It is stock with a Dana 30 in the front and a Corporate 8.25 in the rear. My issue is that when I accelerate from a stop I hear a loud clunk. After that I don't hear it unless I'm at a complete stop. One I accelerate I may hear it again, but it is not as loud. I also hear it when I go from reverse to drive. I have looked around and removed the DS to inspect the u-joint. All is good. I did notice this weekend while I was replacing the rear drum brakes that as I turned the hub on the passenger side rear the was some play and a small clunk. So I checked the drivers side rear hub and spun that. There was no play and clunk. So I'm thinking it may be an issue with a spider gear in the rear diff??? I haven't checked the rear diff but was wondering if anyone else had run into this issue.
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Old June 11th, 2018, 11:21
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Tim_MN Tim_MN is offline
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Re: Clunk noise when accelerating.

Clunking rear axles are rather common, and not really a problem. As you have done already, one would inspect the u-joints, inspect the ring/pinion/spider gears, inspect the motor and transmission mounts, and inspect the suspension and shock bushings. Lubricating the rear output slip yoke will likely reduce the clunking.

Originally Posted by bimmerjeeper

I'm starting to realize people on the Jeep forums are highly expert mechanics .....

Last edited by Tim_MN; June 16th, 2018 at 08:18.
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Old June 13th, 2018, 13:39
jeeplag jeeplag is offline
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Re: Clunk noise when accelerating.

Thanks Tim. I'll check inside the diff. And if everything is good. I guess I can live with the clunk.
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Old June 13th, 2018, 20:20
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Runnin'OnEmpty Runnin'OnEmpty is online now
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Re: Clunk noise when accelerating.

Tim mentioned the slip yoke. I too have a 96 that had a clunk that you could feel rather than hear. It was the slip yoke that needed lube. That's very common on these XJs. Mine also did it when accellerating after a stop.
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