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Old 05-15-2011, 07:39 PM
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Bad CV Joint?

I went offroading in some mud this weekend. Today I noticed that when I make a hard[er] right turn, there's a grinding noise.

After some quick research, it seems like it's most likely a CV joint. Anyone here think the same or have any other suggestions? If so, is there any way to determine which side is bad w/out pulling the hubs off and inspecting?
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Old 05-15-2011, 09:24 PM
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Re: Bad CV Joint?

We just had an other member here with grinding noises which was the diff. Check the fluid first for level and eventual metal chavings to rule out a bad diff.
Are the CV-joint boots still ok?
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Old 05-16-2011, 06:30 AM
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Re: Bad CV Joint?

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Originally Posted by Frango100 View Post
We just had an other member here with grinding noises which was the diff. Check the fluid first for level and eventual metal chavings to rule out a bad diff.
Are the CV-joint boots still ok?
I already changed the front diff fluid (also did the rear diff at the same time) and it looked good.

I don't know if the CV-joint boots are still ok. I think I would have to pull the hub/bearings to get to the boots. But maybe I'm wrong and I can look through the steering knuckle and see the boots? I'll look tonight after work.
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Old 05-16-2011, 11:21 AM
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Re: Bad CV Joint?

If it is the cv heres a writeup...

not very difficult to do


http://www.jeepforum.com/forum/f310/...w-pics-377208/
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Old 05-16-2011, 01:29 PM
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Re: Bad CV Joint?

You can easily see the boots without removing anything, you only have to lay on the ground. It could easily be a bad CV joint, but when you changed your diff fluid, did you check if you needed to put some limited slip friction modifier in the diffs?
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Old 05-17-2011, 07:39 AM
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Re: Bad CV Joint?

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Originally Posted by Frango100 View Post
You can easily see the boots without removing anything, you only have to lay on the ground. It could easily be a bad CV joint, but when you changed your diff fluid, did you check if you needed to put some limited slip friction modifier in the diffs?
Yea, the CV boots actually look really good. I changed the diffs with Royal Purple fluid and they claim you don't need friction modifiers with their product b/c it's already intergrated in. But regardless, I have not options on my WJ and have open diffs. I've also used this fluid the past 2 changes w/out issues.

But last night I sucked it up, got the power washer out, and crawled under the Jeep. I took it mudding this weekend and went places I shouldn't have. It had mud EVERYWHERE (including the bottom of the hood). I pressure washed all the mud off the bottom and around the driveshafts. Maybe I'm speaking prematurly, but I haven't heard the noise again. It could have been some loose mud clumps on the driveshaft. Crossing fingers that it was that.
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