All stock standard.

 

The first thing to do is torque the two trackbar bolts to 125 ft-lbs. If they are at this already, torque them to 130 ft-lbs. Take the Jeep for a test drive.

Most Death Wobble problems are because the trackbar has excessive give, thus creating the wobble effect. Either the give is in the trackbar bolts or the trackbar it self is deflecting. Try the bolts.

 

Are you a voyeur? An ambulance chaser? Let me see... at 50km/hr on a rough, moderately corrugated outback road, towing a camper trailer, the DW occurred and all but steered me into the high cliff edge of the road at this speed. This is in the middle of nowhere, and me with virtually no time to react. How I kept the JK under control in this situation continues to escape me.


Ah yes.... at 110km/hr on a freeway, the DW sets up as I enter a slight curve that is flanked by 3 feet high steel crash barriers. The JK starts to move (sorry, shake like shit) sideways into the barrier. It actuallly leaves the bitumen surface and hits the dirt verge of the highway. Somehow, I was able to slow the JK down by standing on the brakes and wrenching the steering wheel toward the middle of the road.

Same drive.... it starts to rain. A F...wit truck driver (3 trailers in tow) decides to tailgate me at 110km/hr. He can't be more than 20 feet behind me ...I cannot see his lights. The DW starts. So... the truck is up my arse, the road is slippery, I've got the DW really bad. Evasive action big time. Brakes on full; grip the steering wheel with all the force I can muster and try to safely move the JK from the road onto the verge... hit it at 80km/hr....stones, dirt, mud big time fly up... the f/w truckie is blowing his horn like mad and nearly collects a mini Mazda 3 in the inside lane. What an arsehole!!! Get the picture?

Many other very scary examples too.

Rule: whenever driving a JK with known DW, don't ever wear white jocks!!!

 

Torque trackbar to 170NM

 

You are correct...but you can purchase caster adjusting bolts (F &R). Try lookiing through the catalogue of .baseline4x4.com which I think is where I came across them.

Increasing tyre size as you have will help correct caster angle but why the hell should you, I (or anyone else) have to buy bigger tyres (which will soon possibly be illegal in this country (Australia)) to correct an inherent design flaw in suspension systems that are claimed to be specifically tuned for (the JK) various vehicles and that are touted as improving original performance?

I think that some of these so-called systems have been hastily assembled in a cloud of ignorance, and/or covered in a cloud of performance nonsense, with the purpose of maximising profit, rather than any other motive.

There is a big move in Australia to restrict the extent of un-proven suspension modifications, for good reason.

Cheers

 

Err... excuse me guys.....re my original post, I just want to know - will this affect the spring frequency or other spring dynamics such as, will the springs be even firmer, will they have a bigger load capacity. Can one of the pundits out there shed some light please. I don't really want to spend even more money on other springs that may create the same problem.

Believe me, I have tried nearly all of the remedies above, I just want to know....

Ta....

 

Well I am running totally stock and ordered these springs to help level a heavy shrock works front bumper.

I figured that 2" inch of lift with the bumper would actually give me an inch and I would not need to change any other parts (I do not want a full blown lift).

After hearing your stories with them on stock Jeeps I will be returning them the second they get there. DW is not something I want to play with at all.

 

Since caster is an imaginary line that runs from the center of the upper ball joint through the center of the lower ball joint I don't see how adding a larger tire will change it

 

I went down this road with the first lift kit I put on 4" Zone lift kit. Made my jeep drive like crud, worked with Zone and replaced track bars, Adj brackets, drop pitman arm, you name it but nothing worked. I finally had had enough throwing my time and money at a poor set up. Ditched the kit for a Rancho 4" sport lift kit and all my issues dissapeared in one after noon. No more rough ride, no more bouncing down the freeway, no more ESP issues, just a factory like ride that even the wife enjoys. Hope you can fix your curent lift but if you can't I sure can reccomend the Rancho Sport lift !




Regards,

 

Hey i installed a 2.5 rough country bb about three months ago and that evening took it for a spin and sure enough hit bump going 60mph and the whole jeep just shakes like it is about to fall apart scared the s!!! out of me. But i did a lot of research before i replaced anything and this is what i ended up doing with my stock tires still on and the steering stabilizer off i adjusted my toe out to 3/8 and yes it is toe out instead of toe in because the tire is adjusted outward just a little instead of inward just a little and this solved my problem with stock tires and no steering stabilizer even on the jeep and no dw at all now but if you have drove the jk like that and had several dw events than you could have toasted your ball joints especailly your upper ball joint and that in itself can cause death wobble by the way dynatrac is going to release soon some heavy duty ball joints for the jk just a heads up because the stock ones are junk