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Terrible noise....

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Old 07-03-2010, 06:28 PM
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Default Terrible noise....

ok so i just lifted my jeep with a rubicon express 3.5" lift kit and im not getting a very bad vibration when i accelerate and then as soon as i back off or slow down it makes a grinding type of noise, any help?
Old 07-03-2010, 07:14 PM
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check your rear drive line and u-joints
Old 07-03-2010, 07:59 PM
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i replaced the u joint at the rear axle should i replace the one at the transfer case? and check my rear drive line?
thanks for your help
Old 07-03-2010, 11:11 PM
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sounds like driveline vibes.

did you install shims under the leafs, t-case drop?
Old 07-03-2010, 11:35 PM
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I would say you need a sye or at the least a t-case drop.
Old 07-04-2010, 09:00 AM
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i didn't instal shims under the leafs, and no i didn't do a t-case drop but i knew after that kind of vib i would have to, thanks guys.

where can i get some shims for the rear leafs?
Old 07-04-2010, 09:37 PM
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Re sells them.
Old 07-04-2010, 09:52 PM
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4 degree shims should fix the problem. i had the same problem and they worked for me.
Old 07-05-2010, 12:33 AM
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will the shim fix the vibration as well?
Old 07-05-2010, 08:43 AM
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and if i put in the shims will i need anything else?
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