Vibration/shaking/rubbing under drivers seat? -
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post #1 of 4 Old 08-23-2010, 12:38 PM Thread Starter
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1996 XJ Cherokee 
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Vibration/shaking/rubbing under drivers seat?

For a couple months I've had a squeaking noise coming from the front wheels that would occur only when turning left/right and speed up/slow down as I did. It also only happened when driving forward and never when it was raining out. Well that turned into a sort of grinding last week so I figured it was time to replace my front axel u-joints.

However yesterday I started getting a weird vibration/rattling/thumping that I can actually feel through the floor boards. Its not down by the pedals but rather up where my none driving foot sits, roughly in line with the shifter/e-brake area. It occurs more often when going up hills and I can feel and hear it bounce around when I hit bumps in the roads. It reminds me of a fiberglass boat rubbing noise. When standing still with the transmission in park it makes no noise but as soon as I shift to park (still standing still) the noise and vibrations start. I can also feel it vibrating with the sound of my exhaust when I first pull away from stop signs or stop lights.

Is this all from the u-joints or could it be something else? I checked the track bar and everything seems to be tight. Not sure if its related but my front inner axel seals have been leaking pretty bad for awhile but I've been waiting to replace them with the u-joints.

BTW its a stock 96 XJ.

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post #2 of 4 Old 08-23-2010, 01:04 PM
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Inspect the control arm bushings and motor mounts.


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post #3 of 4 Old 08-23-2010, 02:32 PM Thread Starter
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Originally Posted by CJ7-Tim View Post
Inspect the control arm bushings and motor mounts.
Just took a peek at the motor mounts and the ends of both sides of each mount look like below. I'm assuming the rubber is supposed to be a full circle rather than the cones I have on each side? Could that be causing my issue?

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post #4 of 4 Old 08-24-2010, 07:34 AM Thread Starter
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1996 XJ Cherokee 
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Location: Boston, MA
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What transmission mount should I go with? Just a stock OEM replacement like this one from 4wd hardware?

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