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Old 07-07-2012, 06:00 PM   #1
elephant's Avatar
Join Date: Jul 2012
Posts: 6
Another clunk question

Greetings ladies and gentlemen! A couple of months ago I bought my first Jeep wrangler and love the crowd and the capabilities of our vehicles. I quickly learned the addiction of building it better haha. I love being in the jeep family!

My question here today is a clunk i have recently developed in the rear and am having trouble pin pointing it down. Its gotten slightly worse/embarrassing to drive and is most noticeable when first applying power in 1st and reverse. It started shortly after I just installed rokemen control arms in the rear(ups and lowers) and I removed the transmission lowering kit the previous owner put on. A professional adjusted the arms but im still not positive they are adjusted right since the driver side lowers aren't threaded out as much as the passengers. Anyways, the rear drive shaft has no lateral movement and about 1/2" of rotational play in gear. Is that an issue? It has a fairly new tom woods cv paired with an sye. I replaced the transmission mount as well with no luck and I'm just starting to get frustrated with the thing. the engine mounts seem to be doing fine by looking at the stick shift when applying power, it doesn't move at all. Since I've gotten it there's been a vibration at highway speeds mostly around 65-70mph so that's making me believe a bad u-joint that has finally wore out and is starting to make this clunk?

Ive searched all over this form, does anybody have any suggestions i could be overlooking? sorry for the long post, any help would be greatly appreciated!

'99 Wrangler 4.0 5spd - 4.5" lift
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Old 07-07-2012, 06:22 PM   #2
C.L.'s Avatar
Join Date: Mar 2011
Location: North NJ
Posts: 1,990
Did you/they take the exhaust out of it's hangers to make room around the control arm bolts? If the rear-most hanger is not in the rubber mount, the tail pipe will swing over and smack the rear shock every time you take off or hit a good size bump.

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Old 07-07-2012, 06:31 PM   #3
elephant's Avatar
Join Date: Jul 2012
Posts: 6
Yes it is still mounted in its hanger. If it helps at all, there is no noise going over bumps. The control arms do kind of make some noise when going over bumps but i figured it was normal. Nothing like this clung though. Im almost certain its drive line related
'99 Wrangler 4.0 5spd - 4.5" lift
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