"click-CLACK click-CLACK" in 4-LO 1st - Jeep Wrangler Forum
Jeep Wrangler Forum

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

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 08-06-2012, 01:05 AM   #1
Jeeper
 
pcwolf's Avatar
 
Join Date: Feb 2012
Location: Yorktown
Posts: 292
"click-CLACK click-CLACK" in 4-LO 1st

Searched WF but found nothing similar ...

When rock crawling or scrabbling over melon-size rocks in 4-LO I hear a "click-CLACK" noise from under the front end. It is rythmic with the working of the wheels and tires as they climb then clear each rock. No other indication of anything unusual, just a metallic noise that sounds like things are working as designed.

My local club jockeys tell me to check front u-joints. Parked in 2WD I grabbed the front driveshaft and rocked it by hand to see if there was play or noise ... and there was. DS was rock solid, the flange where it goes into front diff was resonating the "click-CLACK" from something in the diff as I rocked it back and forth. Holding the wheel u-joint while I rocked the front DS I could feel the metal touch making the noise, but again no loose u-joint. So I believe the source has to be between the shaft and wheel u-joints.

Does the differential by nature have play like that in it?

As I said, everything works like a horse on the trail, but the noise is definitely there every time.

2006 TJ Rubicon, 40,000 miles, high-quality fluids changed regularly.

Thanks in advance!

-Phil

__________________
-Phil

Man out standing in his field
o|||||||o
pcwolf is offline   Quote Quick Reply
Old 08-06-2012, 02:25 PM   #2
Sponsoring Vendor
 
MCE Mike's Avatar
 
Join Date: Jan 2010
Location: Seattle, WA
Posts: 204
The differential does have a small amount of "play" in them if you rotate the driveshaft back and forth, it is the backlash of the ring and pinion gears. However, there should be no side to side motion, only rotational.

I can't single out any one component yet from the description, but I will say U-joints usually make a lighter clicking sound in my experience when they start to go out. If it is a hard metallic noise, I would pop the diff cover check the ring and pinion. Or possible a gear is chipped in the locker.

__________________
1997 Wrangler SE: 2.5L, NV3550, NV241OR, HP30 front, Rock Jock 60 rear, 4.88s/Detroit Lockers, 35" TrXus MT, TOM WOOD 'shafts, Warn XD9000i, pollock with a skinny pedal behind the wheel



MCE Modern Classic Enterprises, LLC

Home of the "FLEXIBLE FENDER"

www.modernclassicenterprises.com



Join us on Facebook! http://www.facebook.com/#!/pages/Bot...15130588547844
MCE Mike is offline   Quote Quick Reply
Old 08-07-2012, 05:40 PM   #3
Jeeper
 
pcwolf's Avatar
 
Join Date: Feb 2012
Location: Yorktown
Posts: 292
From further research and replies, I believe it is most likely the normal backlash in the ring and pinion gears. Movement of the driveshaft is only 1/4" when I rock it back and forth. Thanks for taking time to reply.
__________________
-Phil

Man out standing in his field
o|||||||o
pcwolf is offline   Quote Quick Reply
Reply

Tags
d44 , differential , metallic noise

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:13 AM.



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