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Unread 10-10-2011, 05:42 PM   #1
kpalm7
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2006 LJ Wrangler 
 
Join Date: May 2011
Location: Reno, NV
Posts: 62
Clunking From Front-end on acceleration (2wd only?)

My '97 TJ with a 4.5" Rubicon Express short-arm lift just started a new clunking noise in the front after wheeling yesterday. I've crawled under there, and it doesn't seem like the driveshaft/u-joints are in very bad shape (62,000 original miles, with less 500 of them with the lift). Is there a definitive way to tell?

The noise is a heavy ping/clunk that happens until about 10 mph on acceleration from a complete stop. You can definitely feel it in your feet, drivers side front. I tried putting it in 4wd to see if the problem worsened, and it went away. The lift is a used Rubicon Express kit, and I suppose it's possible for the joints to be worn. Is there any way to check them besides seeing if they will move? Is it possible that I over-torqued them? I didn't use a torque wrench when I installed the control arms...

Any help is appreciated. I'm taking out some of the control arms to adjust for my SYE I'm installing this weekend, so I plan to re-torque the control arms and track bar. Please let me know if there's anything else I can check or inspect, and how I should do so.


Edit:
I forgot to mention, I've recently noticed my steering stabilizer is leaking, but it seems unlikely that it would be involved when accelerating in a straight line. My tie rod was bent last weekend, although I did adjust it a bit to get it as close to aligned as I could. Not sure if that could be related.

Thanks for any help.


Last edited by kpalm7; 10-10-2011 at 05:44 PM.. Reason: Added info
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Unread 10-10-2011, 05:48 PM   #2
mcannon111
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2006 TJ Wrangler 
 
Join Date: Nov 2010
Location: irmo, sc
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I seriously think the SYE should help clear some driveline vibe stuff up, but that is only associated with the rear... and yes you can overtorque control arms, someone i know did that and his jeep road like crap until he fixed it but that shouldn't cause that problem..
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Unread 10-10-2011, 06:49 PM   #3
rs4race
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1997 TJ Wrangler 
 
Join Date: Aug 2009
Location: Bellevue, WA
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Can you really overtorque them? Really?
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Unread 10-10-2011, 06:52 PM   #4
rs4race
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1997 TJ Wrangler 
 
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One way that i have found to check for slop in joints is to park your car, put on the parking brake and while your underneath looking at the suspect joint have someone attempt to roll a tire back and forth. I have used this to find sloppy joints that dont show up by just tugging and pushing on the control arms.
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