Thumping in rear -
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Go Back > Models > Jeep Grand Cherokee & Commander Forums > WJ Grand Cherokee Forum > Thumping in rear

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Unread 06-27-2013, 08:49 PM   #1
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Join Date: Sep 2012
Location: chickamauga, ga
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Thumping in rear

I have been hearing clunking and thumping coming from my wj suspension that has a new 3" iro lift, adj track bar, adj upper and lower front ca's.
The noises were getting worse so I decided to crawl under and have a look around while someone pushed on the jeep laterally. I found that in the front the pass side sway bar link was loose and causing the clunking. I tightend it down and solved that problem.

The rear however has a lot of movement in the a-arm at the center and outer joints. When I drive the jeep it sounds like there are bowling balls bumping around in the spare tire well. I didnt see anything unusual in the rear control arm bushings from what I could tell.

Does this sound like I need new a arm joints? Do I need an adjustable a arm at 3" lift or would that be a waste of money? Do I need an a arm spacer at 3" lift?

outbackmatt is offline   Reply With Quote Quick reply to this message
Unread 06-27-2013, 08:53 PM   #2
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U dont really need a new arm or spacer. But certainly sounds like u need a new ball joint
2002 WJ Limited [B]4.7[/B]: 6" Clayton REALLY long arms....yep, they are longer than yours [B]SOLD : ([/B]
1998 Platinum [B]5.9[/B] DD
2007 WK Overland [B]5.7[/B] wifes DD

BUILD: [B][url][/url][/B]

[B]"In a world that he did not create, but he will go through it as if it is his own creation. Half man, half beast, whatever it is it is weird, it is ticked off and it calls itself Slash"[/B]
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Unread 08-24-2013, 03:45 PM   #3
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2004 WJ 
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Posts: 41
Outbackmatt .... did you ever fix/find the problem? I Just installed an IRO 4" LA Critical path lift and my WJ also sounds like bowling balls are bouncing around in the back when I hit a bump.
Wondering how it's going for ya.
Thanks for any info!
redsilver2 is offline   Reply With Quote Quick reply to this message

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