Have you done anything with the track bar? Follow the advice provided in my previous post then report back.

 

Hey MATTSAARU,

Typically any change in the steering geometry such as a lift can/will cause DW. All though I have not seen too many problems with lifts under 4 inches. If there is a problem with a lift under 4" the track bay may have to be adjusted either with an aftermarket adjustable or relocation of the stock OEM track bar and good steering shock(stabilizer) should take care of it. I would highly recomend an OEM Jeep/Mopar part as I have seen these last atleast longer than a year or two opposed to an aftermarket part on a stock jeep up to 3.5-4" lift . I have worked on many stock jeeps with DW and the only worn/defective part has been the steering dampner, it is required on any stock jeep with stock steering, contrary to another post.Any excessive free play in any steering componet can cuase DW. The most comon is the track bar. Typically the joint at the frame wears and gains excessive freeplay. I've seen the TB axle mounting bolt need retightening as well. It won't take much extra play in the track bar to be the primary cause of death wobble.(yes, a steering shock can mask it somewhat). Worn TRE's and drag link ends will cause DW, more so when your tires are out of balance or hitting a pothole at speeds usually around 35-40+.
The length and angle(horizontally and vertically) relationships of the track bar and drag link are critical, the track bar should be as close to the same length as the drag link as possible, especially on lifts over 4-5" and/or with modified(converted) steering linkage.IE: Inverted Y with 1 ton TRE's, OTK etc. An incorrect track bar lenght and angles will cause more than a DW.

 

Ugh here we go....

 

check for cracks
wear the steering box mounts this was my problem

 

Could this cause death wobble? Original sway bars

 

subbed.

 

??

 

A sway bar won't cause it,A steering stabilizer will only mask death wobble not cure it.Ok matt you said you replaced 2 ball joints and one u joint right?What shape of the other ball joints and u joint ?What about both unit bearings ?The list of parts that can cause death wobble is anything on the whole front suspension.In your case is kinda thinking its the stock track bar.Yeah some people get away with a stock one at 3 inches but most aftermarket adjustable ones start at 3 inch lift.And honestly i rather have a adjustable one so you can get everything perfect which you can't do with a stock one.

 

i have fought the death wobble before many times !! the very last one i had ended up being a cracked uni frame behind steering box the one before that was a bad upper control arm bushing on the driver side at the body end another time i had it ,it ended up being a loose pittman arm nut so get yourself a friend and a prybar and a flashlight and look at everything very very good it only takes a little movement to set it off

 

Tires out of balance has not even been mentioned and will cause DW. Inner/outer tie rods should be checked with someone turning the wheel and another person looking. This is usually it from what I have seen. Also your toe adjustment being really off can cause DW. Easy to measure and check.
Bad wheel bearings should be checked also. Jack up the jeep and grab the tire at the bottom and the top and try to rock it top to bottom. Should be solid, if not then need to replace unit bearing

Steering stabilizer will not cause or fix DW.

 

On my DW, I replaced everything so there wasn't any more problems (plus it needed it). I started with ball joints, then adj trackbar, then bushings in the lca's and uca's and bushings on the axle where the uca's attach. A drop pitman arm, steering stabilizer was added as well as wheel bearings. I then had the alignment done and have no problems with DW. I don't even have to run a sway bar anymore. Everything on the front end needs to be replaced! Mine was 14 years old when I bought it. Parts wear out.

 

I'm just going to leave this here... You altered your ride height and are running a stock track bar at stock length in the stock location.... hmmm

I'd also like to mention that it is very unsafe to work on a vehicle that is only supported by a hydraulic jack. Please practice safe working methods and get some jack stands under that rig.

 

i did two ball joints and a tie rod end by the pitman arm cannot find a ounce of slop anywhere else.. both bearings seem tight and quiet. Tires are old and were sitting awhilr possably a issue.. right now i am replacing a bad u joint and doing breaks as a break pad seperated.

 

Fronts only out 3/16" off center tried redrill made it worse.. and there is a jackstand under the unibody thanks for the suggestion though

 

I balanced the tires which are just 235 and each took atleast 3 to 4 ounces of weight.. thinking this may be a good part of the issue. I did have it aligned aswell and they shimed the lcas to gix my caster angle