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Unread 11-22-2011, 11:52 AM   #1
FelonyPimping
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clunk when getting on the clutch

So... it's most prominent in first gear, off the gas while pressing the clutch. Its a rather nasty clunk. It bangs a little if i shift quick and im not smooth on the clutch but not nearly as bad as the first scenario.

It checked it out today and I can't really tell if the u-joints are bad. I can push up on the rear drive shaft and it moves a 1/2 inch or so. Ill be replacing the tranny mounts tomorrow.

Any tips on checking u-joints. I just can't tell. Anything else I should look at replacing? The motor mounts look ok but I might replace them any way.

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Unread 11-22-2011, 11:54 AM   #2
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Quote:
Originally Posted by FelonyPimping View Post
I can push up on the rear drive shaft and it moves a 1/2 inch or so. Ill be replacing the tranny mounts tomorrow.
I think that's your problem. Is the entire drivetrain moving or just the driveshaft? I'd probably go ahead and replace all the u-joints in the rear driveshaft regardless if you never have.
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Unread 11-22-2011, 12:20 PM   #3
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The entire Tcase and tranny move when I push on it.

Besides the fact that the u-joints have probably never been replaced why do you suggest changing them? Do I need drop the drive shaft for the tranny mounts? The rear seal on the Tcase does appear to be leaking though so I may pull it anyway and do all of it.

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Unread 11-22-2011, 12:46 PM   #4
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Not knowing your miles, but seeing that you are very stock.. If your track bars are still there that would be a reason for the clunk. A very good reason. The get egged out and start to clunk.

99.9 percent of us just remove the track bars, front and back, and throw them away.
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Unread 11-22-2011, 01:02 PM   #5
FelonyPimping
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133k miles. Both track bars are still in place. And yes, completely stock at this point. Just trying to get back to ground level before I start modding the thing.

Also, what's this mount called? I'm having trouble finding it on the auto part sites. It's on the drivers side of the transmission.
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Last edited by FelonyPimping; 11-22-2011 at 01:17 PM..
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Unread 11-22-2011, 01:53 PM   #6
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Check quadratec. I believe I just saw that mount in their catalog yesterday.
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Unread 11-22-2011, 02:12 PM   #7
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I believe it's called a torque arm bushing or something along that lines.

When I had that clunking, tightening down that bushing solved the problem for me.
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Unread 11-22-2011, 03:20 PM   #8
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Nice, thanks.

I couldn't find it at the parts store so im just gonna throw some washers on and tighten it down. Besides the big gaps it looks to be in good shape.

Got new motor and trans mounts though. Along with rear DS u-joints and the tcase seal for the slip yoke. That's all going in tomorrow.

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Unread 11-22-2011, 03:41 PM   #9
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Maybe I'm not seeing the picture correctly but it looks like you don't have a transmission mount under there. Where those two slots are beside the torque arm bushings is where I thought the transmission mount went. Hopefully someone can confirm.
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Unread 11-22-2011, 04:33 PM   #10
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Quote:
Originally Posted by Louie4
Maybe I'm not seeing the picture correctly but it looks like you don't have a transmission mount under there. Where those two slots are beside the torque arm bushings is where I thought the transmission mount went. Hopefully someone can confirm.
Hmmm, good eye. I think you're right.....
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Unread 11-22-2011, 05:02 PM   #11
FelonyPimping
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Interesting.........

There's a mount, it's just not there...... It's farther back. I thought it was odd too when I was reviewing my Haynes manual but just wasn't sure. I'll know more when I drop the cross member/skidplate tomorrow. I've got a new mount ready to go in, I'll double check the location. Thanks for the attention detail.
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Unread 11-23-2011, 07:15 AM   #12
Louie4
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Quote:
Originally Posted by FelonyPimping View Post
Interesting.........

There's a mount, it's just not there...... It's farther back. I thought it was odd too when I was reviewing my Haynes manual but just wasn't sure. I'll know more when I drop the cross member/skidplate tomorrow. I've got a new mount ready to go in, I'll double check the location. Thanks for the attention detail.
I recently replaced mine. I have the 6 cylinder and AX-15. I don't imagine it's that different but it will give you an idea.



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Unread 11-23-2011, 10:33 AM   #13
FelonyPimping
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Thanks. That looks like my setup. I know more when I get the skid plate's off. Three of the bolts currently wont budge even with an air powered impact driver.

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Unread 11-23-2011, 12:31 PM   #14
FelonyPimping
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Rain delay.

Got it off finally, just needed a few more feet of beaker bar. Started to wire wheel the skid so I could paint it but only got one side so far. All the bolts are cleaned up though. need this rain to stop so I can finish up the other side and paint it now.

By the way, my mounts are exactly like those photos.

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Unread 11-23-2011, 09:19 PM   #15
Louie4
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Yeah I was underneath the jeep today and noticed my mount was further back and not in those slots I mentioned earlier. Let us know if you fix it.
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