Rear axle noise!?! Thoughts please...06' lj - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 02-10-2011, 09:17 AM
Thread Starter
Join Date: Feb 2011
Posts: 2
Exclamation Rear axle noise!?! Thoughts please...06' lj

Just bought an 06' Unlimited and within a day started hearing knocking noises from the rear end. When the Jeep starts swaying back and forth laterally while driving on rough, uneven terrain you can not only hear it you can feel it in your seat. It cannot be heard under load, or when driving up rough hills. But coasting or under braking, decending the same damn hill, it bangs like crazy. I can recreate the noise while parked by pushing on the rear quarter panel. It's not a loose spare or loose lugs! I jacked it up at the pumpkin and was able to make the wheel move in and out, recreating the sound. After removing the wheel, I could do the same with the brake assembly. Everything felt tight and seemed to be in good shape with shocks, springs, sway bar and bushings. I'm worried it may be something in the differential. I hope its just a matter of turning a wrench and tightening something. She's a 2006 with 34K mi, light offroad work and only one owner. Any suggestions?

VI-Rocker is offline   Quote
Old 02-10-2011, 09:28 AM   #2

WF Supporting Member
TexasT's Avatar
Join Date: Oct 2009
Location: Texas Hill Country
Posts: 1,011
Get under the jeep and have someone rock it like you describe and look for movement in the control arms. Take a close look at your rear track bar as I suspect that may be where the problem is. There should be NO play in the bushings! If there is you will need to change bushings or go for aftermarket replacement parts.

1999 Sahara
4" Teraflex long arm lift. D30 tubed with chromoly axles, high pinion, powertrax no-slip and Warn Lockout Hubs. D35 w/ultimate 35 upgrade OX locker, 4.56 gears. NP231HD, Air on Board, Warn M8000 Winch.
TexasT is offline   Quote
Old 02-11-2011, 06:13 PM
Thread Starter
Join Date: Feb 2011
Posts: 2
Thumbs up

Thanks TexasT! Put her on a lift at the local shop today and the mechanic hit on the track bar right away. I didn't really see much movement myself, but then again there was no load on it at the time. He recommended replacing the shocks also. Ordered some replacement bushings for a minimal cost and some Skyjacker Hydro shocks from our friends at Quadratec. Hopefully this will not only solve the prob., but give her a better ride. I appreciate the input.
VI-Rocker is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear brake noise oIIIIIIo TJ Tech Forum 1 10-13-2010 11:34 AM
TJ? rear axle Rainman TJ General Discussion Forum 7 01-11-2010 09:11 PM
crash coarse please tbk125 TJ General Discussion Forum 8 12-07-2009 01:36 PM
Superior Axle's new axle Super Truss kit installed. Jerry Bransford TJ Tech Forum 29 03-19-2009 02:26 PM
The Dana 44 rear axle nickguy General Jeep Discussion 6 06-04-2008 11:29 PM

All times are GMT -5. The time now is 07:23 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC. is not in any way associated with FCA US LLC.