death wobble jeep cherokee - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Cherokee & Comanche Forums > XJ Cherokee Technical Forum > death wobble jeep cherokee

Baseline 4x4 Lifetime Warranty 4340 Chromoly Axle Shaft KiClayton Off Road WJ Long Arm Kits!Clayton Off Road - JK Prototype Gas Tank Skid

Reply
Unread 03-23-2013, 04:55 PM   #1
john126293
Registered User
 
Join Date: Sep 2012
Posts: 19
death wobble jeep cherokee

Just installed a rough country 3" suspension lift kit on my 1996 jeep Cherokee. After installing I test drove it and it started to do the death wobble so first thing I did was change the track bar because that's what I herd it is most of the time. So I changed the track bar but it still does the death wobble so any suggestions what else it can be.

john126293 is offline   Reply With Quote
Unread 03-23-2013, 07:41 PM   #2
JbmLaredo
Registered User
 
Join Date: Feb 2013
Posts: 141
Best way is jack it up and give front suspension and steering a very good checking over especially the control arm bushings they can be hard to diagnose unless you really pull and push on em
JbmLaredo is offline   Reply With Quote
Unread 03-24-2013, 07:55 AM   #3
flexyxj
Registered User
2009 XK Commander 
 
Join Date: May 2005
Location: Sioux Falls,SD
Posts: 491
Quote:
Originally Posted by john126293 View Post
Just installed a rough country 3" suspension lift kit on my 1996 jeep Cherokee. After installing I test drove it and it started to do the death wobble so first thing I did was change the track bar because that's what I herd it is most of the time. So I changed the track bar but it still does the death wobble so any suggestions what else it can be.
Did you install an adjustable trackbar and actually make sure the front axle is centered or did you just put on a new stock trackbar? Did you check alignment?
flexyxj is offline   Reply With Quote
Unread 03-24-2013, 08:26 AM   #4
CJ7-Tim
Real Jeeps have dents.
 
CJ7-Tim's Avatar
2000 XJ Cherokee 
 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
Posts: 21,614
Death wobble isn’t similar to a wobble from an unbalanced tire. It is by far worse. When death wobble hits you will know… it’s a violent shake from the front end that feels like the Jeep is about to fall apart. Usually when it happens the only thing you can do to stop it is to slow down.

The first steps to eliminate death wobble should be a visual inspection of each component, check the bushings, tire balance and an alignment. These are some common things you must check anytime you lift your Jeep. Death wobble is experienced mostly on lifter Jeeps, however it is not uncommon for someone without a lift to experience the dreaded DW. Listed below are a few things you can check.

Check your Track Bar, play in this can cause the axle to shake.
1. Bushings - check to see that they are not worn. Looks for cracks, and excessive play)
2. Angles - this angle should be the same as your draglink. Use an angle finders you can get at sears to determine this, don’t just eye-ball it.
3. Bolts – Make sure all bolts both at the axle end and at the frame bracket are tightened down to spec (some lift components have a different torque spec then)

Check the Axle, your mounts may be worn
1. Check the axle mount. Here is a good write up on a wallowed out bolt hole
http://www.jeepin.com/features/trackbarfix/index.asp
2. Check your Universal joints, a binding or lose U-Joint can cause DW
3. On the frame end if you still use the conventional Tie Rod End or (TRE) make sure that there is no play in this, as play can cause DW.
4. Look/Check for worn/torn boots on ball joints/tie-rod ends.

Check your Tires
1. Out of balance tires can cause shaking in the front end, which can lead to death wobble.
2. Make sure all of your lug nuts are tight, (Sounds elementary but it happens to the best of us)

Check your Frame
1. Small cracks in the frame can cause the steering box to feel loose, Shaking from DW can only make this worse. 33’s and larger should have some form of Steering box brace, or frame brace in.
2. If you have upgraded your frame mount, make sure its cranked down nice and tight. (best to use an impact gun)
3. A busted Frame Mount can cause play in the front end causing DW (Keep a watchful eye on the welds as welds in sheer can break over time.

Make sure you have a good alignment
1. After you get an alignment done, have them print out the numbers for you. An XJ should have a 7* positive caster angle. A lifted XJ can’t always have that high of a number because the pinion would become out of alignment with the front driveshaft. Pinion angle takes precedence over caster.
2. Make you sure you go to a place that will adjust the caster if necessary (either by shims in the frame side of the LCAs, or adjustable LCAs).

The more adjustable parts the easier it is to tune in your suspension.
1. Adjustable Track Bar
2. Adjustable Upper and Lower Control Arms (upper ones above 4” of lift). Not only are they adjustable, but they are stronger.


Things to remember:
1. After any lift, get your Jeep professionally aligned, this is a REQUIREMENT, not a suggestion.
2. A Steering Stabilizer (SS) is not a quick fix for DW.
3. Make sure that the lift you purchase comes with all the required parts for a safe driving vehicle. (as long as its going to be a DD)
4. PLEASE ALWAYS DRIVE WITH YOUR FRONT SWAY BAR CONNECTED!

Entire list of everything that can cause death wobble:

-Front tires out of balance
-Front alignment out of spec
-Loose track bar
-Worn track bar bushings
-Worn track bar end
-Needing an adjustable track bar
-Bad bushings/joints in control arms
-Worn/damaged steering stabilizer
-Worn/damaged shocks
-Worn/damaged tie rod end
-Bad U Joint
-Bad ball joint
-Loose frame mount
-Steering box looseness
-Need drop pitman arm
-Driveshaft(s) not balanced
-Bad front hub assembly


Torque specs:

Item ........................................ Ft. lbs. ................... Nm

Lug nuts (1/2 X 20 w/ 60* cone) .... 85-115 .............. 115-150
All tie rod ends .....................…..... 55 ...................….. 74
Steering (both ends) ..............…..... 55 ................….... 74
Shock absorber upper nut .............. 16 ................….... 22
Shock absorber lower nuts ............. 17 ................….... 23
UCA frame end .....................…...... 66 ..............…..... 89
UCA axle end .........................….... 55 ................….... 74
LCA frame end ......................…..... 85 ...................... 115
LCA axle end .........................….... 85 ...................... 115
Track bar frame end ..............…..... 60 .................…... 81
Track bar axle end .................….... 40 ..................…... 54
Track bar bracket bolts ..........…..... 92 ...................... 125
Track bar bracket nut .............….... 74 ....................... 100
Track bar bracket support bolts ...... 31 ....................... 42
Hub bolts (3) ............................…. 75 ....................... 102
Hub- axle bolt ..........................….. 175 ..................... 237
__________________
.

According to the National Shooting Sports Foundation, AR-15 sporting rifles account for nearly 20% of all U.S. firearms sales.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
CJ7-Tim is offline   Reply With Quote
Unread 03-25-2013, 03:05 PM   #5
john126293
Registered User
 
Join Date: Sep 2012
Posts: 19
I just put on a stock track bar but next thing I need to do is get an alignment. Also my steering stabilizer looks like its leaking fluid so that's next to be changed. One more thing I checked everything underneath everything looks tight but my tie rod I can move it back and forth would that cause death wobble
john126293 is offline   Reply With Quote
Unread 03-26-2013, 10:54 AM   #6
jgrimm
Registered User
1998 XJ Cherokee 
 
Join Date: Dec 2010
Location: winston-salem, NC
Posts: 65
Quote:
Originally Posted by john126293 View Post
Just installed a rough country 3" suspension lift kit on my 1996 jeep Cherokee. After installing I test drove it and it started to do the death wobble so first thing I did was change the track bar because that's what I herd it is most of the time. So I changed the track bar but it still does the death wobble so any suggestions what else it can be.
Get an alignment from a reputable shop in your area. Then add a heavy duty steering stabilizer (or vice versa, but still, get it aligned). I ran a Moog super trail (lifetime warranted). The stock stabilizer is barely adequate for stock tires in many cases.
__________________
1992 YJ, 4.0 HO, 5-Speed (AX-15), 2.5" lift, 31" tires, Sony sound system, w/ pioneer sound-bar, copper-red paint, Loved it. Miss it. Sold.|1999 XJ. The "Cheep". 4.5" RC lift. 33" BFG MT. Train Horns. 2wd to 4x4 build. DD. Sold.|2003 WJ. 30" Michelin AT's. Curt roof rack. Train Horns. Stock. Soon to be lifted. DD.
jgrimm is offline   Reply With Quote
Unread 03-31-2013, 02:33 PM   #7
john126293
Registered User
 
Join Date: Sep 2012
Posts: 19
Anybody know exactly where I can find a video of how to remove/install the lower and upper ball joints for my 1996 jeep Cherokee
john126293 is offline   Reply With Quote
Unread 03-31-2013, 02:36 PM   #8
flexyxj
Registered User
2009 XK Commander 
 
Join Date: May 2005
Location: Sioux Falls,SD
Posts: 491
Go to YouTube. Lots of videos there.
flexyxj is offline   Reply With Quote
Unread 03-31-2013, 03:15 PM   #9
BigBadWuf
Registered User
1992 XJ Cherokee 
 
Join Date: Mar 2013
Location: Greenville, Virginia
Posts: 183
Quote:
Originally Posted by john126293 View Post
Anybody know exactly where I can find a video of how to remove/install the lower and upper ball joints for my 1996 jeep Cherokee
Theres a guy called "bleepin jeep" on u tube, hes got one.
BigBadWuf is offline   Reply With Quote
Unread 03-31-2013, 03:33 PM   #10
Timo_90xj
Web Wheeler
 
Timo_90xj's Avatar
1998 ZJ 
 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,436
Quote:
Originally Posted by jgrimm View Post
Then add a heavy duty steering stabilizer (or vice versa, but still, get it aligned). I ran a Moog super trail (lifetime warranted). The stock stabilizer is barely adequate for stock tires in many cases.
Steering stabilizer won't do crap for DW - it's only masking the problem, not getting rid of it. Properly tuned suspension with correct angles on the steering and all susp. and steering parts being in good shape will result in no DW even if you're not using an SS. If you want to use a stabilizer, only install it AFTER you've gotten rid of DW.

I've run two different XJs and my current ZJ without steering stabilizers, up to 35s and ~4" lift. I've been driving like that with those three Jeeps for past 6 years with absolutely zero DW issues
__________________
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

http://www.jeepforum.com/forum/f13/d...s-etc-1222317/


1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
Timo_90xj is offline   Reply With Quote
Unread 07-03-2013, 04:16 PM   #11
john126293
Registered User
 
Join Date: Sep 2012
Posts: 19
My death wobble is bk changed track bar tie rods and ball joints. It came bk after my upper ball joint kept coming up so a mechanic tacked it for me and I already got an alignment and I still have the death wobble any suggestions
john126293 is offline   Reply With Quote
Unread 07-04-2013, 12:45 AM   #12
Timo_90xj
Web Wheeler
 
Timo_90xj's Avatar
1998 ZJ 
 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,436
Do you have stock LCAs and UCAs? What tire size? IMO aftermarket adjustable CAs are needed for proper caster angle to be achieved at pretty much any lift height.

With larger-than-stock tires on aftermarket wheels, you very often need to adjust toe-in to zero or very close to it. Stock alignment values don't work on lifted Jeeps.
__________________
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

http://www.jeepforum.com/forum/f13/d...s-etc-1222317/


1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
Timo_90xj is offline   Reply With Quote
Unread 07-04-2013, 07:43 AM   #13
Kevin108
Registered User
2000 XJ Cherokee 
 
Join Date: Aug 2009
Location: Portsmouth, VA
Posts: 3,816
An adjustable track bar fixed my death wobble. You need to measure your axle to make sure it's centered. At 3" of lift, I was way out on my Jeep. When the geometry of all those suspension components is off because the axle isn't centered, it makes death wobble much more likely.
__________________
My build thread has pics again. http://www.jeepforum.com/forum/f177/kevin108s-2000-xj-build-867428/
Kevin108 is online now   Reply With Quote
Unread 07-04-2013, 12:16 PM   #14
nickcospo
Registered User
 
Join Date: Apr 2013
Posts: 56
This might be my problem
nickcospo is offline   Reply With Quote
Unread 07-04-2013, 12:44 PM   #15
john126293
Registered User
 
Join Date: Sep 2012
Posts: 19
I have a 3 inch lift kit with 235/75/15 tires they are a lil bigger than stock and not sure what a LCA or UCA is and i don't have an adjustable track bar should I get 1
john126293 is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.