Rear passenger knock - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 07-12-2012, 10:36 PM   #1
Join Date: Jun 2012
Location: Maine
Posts: 4
Rear passenger knock

I just got a brake job done (both rear pads, spring kit, partial lines) for $250. Today I notice a new knocking around the rear passenger wheel.

The sound can be heard while driving but I can also re create it myself by rocking the jeep by hand. When I stand on the running board and rock it with my body weight, the sound changes locations.

When rocking it by hand not standing on the jeep, it seems to be near the rear passenger wheel.

Is this sound a shock or did my mechanic screw something up? It just started after the brake job, so I'm very suspicious.

Any help would be appreciated.

mitchellsnowman is offline   Quote
Old 07-15-2012, 02:06 PM   #2
Join Date: Jun 2012
Location: Maine
Posts: 4

mitchellsnowman is offline   Quote
Old 07-15-2012, 02:10 PM   #3
Knows a couple things...

WF Supporting Member
Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 38,518
Can you recreate the knock by push-pulling on the wheel after jacking up the rear axle on one side? If so, you have a Dana 35c rear axle and that that is the normal sound of the axle shaft being able to move in/out which is normal due to its c-clip design.
When you have a choice, buy American.

Jerry Bransford is offline   Quote
Old 07-15-2012, 02:11 PM   #4

WF Supporting Member
GoldenSahara00's Avatar
Join Date: Aug 2010
Location: SCPA
Posts: 16,922
Check to make sure your lugs are on tight, after that remove the tire and check that everything is tight and bolted in and around the drum etc. lay down and have someone rock the jeep for you. look at sway links, track bar, etc. there are alot of things that could make noise. It may be completely unrelated to the brake job. Also look around for tools that he may have left sitting on top the gas tank or skid plate or something, I have heard of that happening before.
Ryan - A good eye, a light foot, and a smart rig.
Bolt-ons are boring
My Build -
Rausch Creek Trip: 2014 Trip Coming Soon
GoldenSahara00 is offline   Quote
Old 07-16-2012, 10:44 AM   #5
Join Date: Jun 2012
Location: Maine
Posts: 4

thanks for your help guys.

with someones help, i was able to get under the jeep while they rocked it.

the rattle was a sway bar bushing. getting a new set today.

I had not thought to look at the sway bar again because i had just welded the other side. turns out it was the sway bar causing trouble yet again!

I appreciate the advice, everyone!

mitchellsnowman 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

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:24 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC