Death Wobble - The First Step To Solving The Problem!
Death Wobble - a quick (4–10 Hz) oscillation of primarily just the
steerable wheel(s) of a vehicle. Initially, the rest of the vehicle remains
mostly unaffected, until translated into a vehicle yaw oscillation of
increasing amplitude producing loss of control.
Coil-sprung vehicles with a track bar setup such as the Jeep WJ, XJ, ZJ,
TJ, and JK with both stock and after-market suspension lifts often have
This video outlines (in my opinion) the best first step to solving death
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After my 3.5" lift, this started to happen. No matter how much I torque
down my JKS adjustable track bars this happens when I hit a moderate bump
THis is just a very minor wobble, but even then you can see me start to
swerve. For my own safety and the others on the road with me I did not do
this any faster.
See at 0:38 I hit RR tracks at 45mph and no wobble. at 0:50 I hit a bump
on a bridge doing 53MPH and you can hear it continue for 10+ seconds after.
My 2005 Jeep Wrangler shakes violently and Chrysler will not acknowledge
It tured out to be the tires. We went from good year to michelin and have
been driving with michelin for over a year now and it has not happened
The local dealership finally believed me after watching the video and
convinced chrysler to give me new tires.
-- If you have good year wrangler tires, this may be the problem. Good Year
will not acknowledge a problem. Be persistant with your dealership.
Project-JK Tips & Tricks : The #1 Cause of Death Wobble
Come visit us at: http://www.WAYALIFE.com
I can't count how many times we've come off the trail and heard someone on
the CB yell out that they've got death wobble. After pulling over and
giving things a quick look to make sure nothing is broken, I have the
driver help me perform this simple test.
Turn your key to the ON position but do not start your engine. Have the
driver slowly turn the steering wheel to one side and then the other while
you keep an eye on the front track bar. 9 out of 10 times, this is the
Some times it's on the frame end and some times it's a blown bushing
instead of a loose bolt but the one thing for sure is, the problem is
almost always track bar related. Normally, a 21mm socket and a torque
wrench set to 125-130 ft. lbs. of torque would be all that you need to fix
things up. However, on this Jeep, the mounting hole was pretty wollowed out
and we ended up having to tighten the bolt to about 140 ft. lbs. of torque
in order to get this Jeep rolling safely again. Once back at home, a washer
was welded up to the mount to make it a tight fit again.
For more information on how you can solve your death wobble, visit
Jeep Death Wobble
My Jeep doing a death wobble after comming home from wheeling. Would do it
after hitting 60 km/h. Mud getting into the tire from loosing a bead on the
trail was the cause.
How To fix Death Wobble
In this video I explain how to cure death wobble on your vehicle. This
particularly is a Dana 30 on a Cherokee XJ but it could relate to most
vehicles particularly solid axle SUV's and trucks like Jeep Wrangler, TJ,
How-To Fix Death Wobble Part 2 -
How-To Install a new Track Bar -
Watch This Before You Lift Your Jeep -
How-To Change a Tie Rod End -
DIY Alignment -
How-To Tighten Your Steering Gear Box -
Ho-To Install a Steering Stabilizer -
How To Tell if you have a bad U-joint -
How-To Change a U-Joint with a Hammer -
How-To install an SYE -
How-To replace a double cardan Joint -
*This product is meant for entertainment purposes only. Your mileage may
vary. Do not try this at home. Void where prohibited. Some assembly
required. For off-road use only. Slippery when wet. Batteries not
included. Do not use while operating a motor vehicle, heavy equipment,
cherokee XJ, wrangler TJ, wrangler JK, or any Jeep vehicle, especially the
newer Fiat ones. How-to videos may be too intense for some viewers and
children under 30 years of age. Please remain seated until the 4x4 ride
has come to a complete stop. Studies have shown viewing these videos
causes increased cancer risks in laboratory test people. I am not a
professional, I have no training, I'm not even particularly good at horse
whispering. Don't believe everything that you know. Please keep your
hands in the vehicle at all times. Do not tap on glass. Do not eat anything
that has been on the floor for more than 3 days. Keep your hands to
yourself. Not to be taken internally. Reproduction strictly prohibited.
Driver does not carry cash. Objects in Bleepinjeep mirrors may be farther
than they appear.*
Steering wobble cure for my jeep
My Jeep Wrangler TJ wobbled at highway speeds. It wasn't a full death
wobble, just a steering wheel shake. I got underneath it and had a friend
turn the wheel back and forth until I found bad bushings in the steering
stabilizer. This video shows me replacing those bushings. I hope it helps.
Wrangler death wobble issues
1999 TJ Sport... I've been having issues with some "death wobble." I think
I may have found the culprit but I'm not sure. I know the right wheel
could use a re-balance (this is the wheel that has the "wobble."
I tighten my track bar every month as I think this is a problem as well.
Now the question... Is the movement in the tie rods, the track bar tie rod
(i know this is not what it's called) and the pitman arm "tie rod" (again,
wrong terminology) normal? Should it be making that knocking sound when I
Should any of those components be moving when I turn them?
PLANMAN explains Common source of death wobble on Jeep JK Wranglers
To understand your front end and see a Death Wobble Diagnosis, you need to
watch my 2 other videos:
Northridge4x4.com now has a solution for the undersized bolt issue that is
more affordable than sourcing the hardware yourself.
Chrysler decided to use 14 mm bolts for the front trackbar on 07-12 Jeep
JKs even though the stock bracket holes and the trackbar end bolt sleeve
holes are 9/16".
This is a common source of Death Wobble for 07-12 Jeep JKs because if the
stock bolts are not correctly torqued and periodically retorqued, the
looseness or play of the 14 mm bolts in the 9/16" bracket holes ends up
ovaling/wallowing the holes out--allowing even more play/looseness.
When the bolts are not sufficiently torqued and the bolt holes are
ovaled/wallowed out, and the suspension hits a pothole, railroad track, or
some other road imperfection, the front end suspension and steering can get
thrown into a very violent harmonic type resonance that can end up damaging
the rest of the front end components (ball joints, drag link ends, tie rod
ends, unit bearings, front upper axle side control arm bushings, etc.).
Death wobble is so violent that it can crack or tear off stock trackbar
brackets and welds.
Death wobble requires coming almost to a complete stop to get the harmonic
resonance/vibration/wobble to stop. It is dangerous because the driver can
lose control of their vehicle.
It is vital to stop driving a vehicle that has had even one episode of
death wobble and immediately diagnose and fix the source(s) of the problem.
Death wobble is relatively simple to diagnose and fix through a series of
I have posted write-ups on several jeep related forums about how to
diagnose and fix death wobble. Generally, post #1 explains DW, and post #2
gives an inspection checklist.
Death Wobble - Track Bar Conversion to Fix Death Wobble - KevinsOffRoad.com
Death Wobble Cure: Highlights of the KevinsOffroad.com Track Bar Conversion
and Super Durometer Bushings to help stop Death Wobble on the Jeep ZJ Grand
Cherokee, the Jeep XJ Cherokee, and the Jeep MJ Comanche - KOR-9001 Track
Bar Conversion for Jeep XJ MJ ZJ
Hey guys. It's Kevin from KevinsOffroad.com . Today we are going to look
at one of our Track Bar Conversions.
This is what we use to get rid of Death Wobble on the XJ Cherokee and the
ZJ Grand Cherokee, and we've been using it for a lot of years. It seems to
work really, really well...I'm going to show you all the components that
First off, we have the lower end. That goes down on the axle side. We've
got a jamb nut that goes on over it, and then this assembly threads into
this main bar here. Now, this bar, you'll notice, has an open end...it does
not have a bushing like the normal factory track bar would. This is an
after market JKS track bar, which is mounted from the bottom side of the
Track Bar Bracket on the Jeep. This piece goes up through the bottom of
this bracket here. You can see the little hole which is left over.
This bracket has been modified with this extra piece down below. We do that
for two reasons, one to keep the cost down for you guys, but most
importantly, you'll see this rib on the back side of this bracket here.
This mounts to the frame here... you have two bolts that come up from the
bottom and two bolts that come in from the side.
When the Jeep turns left and right, the axle moves left and right, and the
Track Bar's job is to keep it positioned so that it doesn't move, so if you
don't have this rib on the back side of this thing, what happens is this
bracket actually bends like this... there are some After market brackets
that are on the market that just bend, and then you still have Death Wobble
problems, so this is very,
very important, and key to a good solid design.
The bar fits into the bottom here, and it gets a Grade 8 half-inch bolt
through it. You have your option of either the bushings that come with it
normally... these are the same bushings that would come in any after market
track bar...made by Daystar...or you have the upgraded Super Durometer
bushings that we have manufactured specifically for us.
This is an exclusive KevinsOffroad.com product... you can't get this
anywhere else. I'll show you the difference. If you squeeze this, you may
be able to see on camera how it mushrooms out a little bit. If I squeeze
this one...uurrrrr...no mushrooming. So, this is a 60 or so Rockwell
Durometer bushing, this is a 45 or so...so this one's approximately one
third to half again stiffer. I think this one might be like a 62 or 64 or
something...I'm not a hundred percent sure on that. It's much, much
What happens is that these bushings get put together as a pair, and they go
inside of this here, and then the other end goes inside, just like
that...in fact, I'll show you...maybe not very well... well, I won't waste
your time with that, but basically everything slides together... a pair
goes in here, and this tightens up the steering immensely because of the
lack of movement the track bar is allowed, because these bushings don't
crush any longer since you've got these Super Durometer bushings.
So, basically, this is why this is such a wonderful bar if you're having
Death Wobble problems. So, if you have any questions, don't hesitate to
give us a shout. Our e-mail address is firstname.lastname@example.org ... and if
you want to give us a call it's 602-841-3355.
Thank you very much! I really appreciate it, and let us know how we can