You don't give much info, so I have to make many assumptions. (Mileage, normal uses, does it start at certain speeds, what suspension did you add, would be questions I would like to know about) I don't know if the people you have taken it to are true Jeep QUALIFIED, but I will assume not if they haven't fixed it by now. The very first thing you or someone who
UNDERSTANDS steering and suspension need to do is crawl under the front while someone turns the steering wheel lock to lock.
EVERY joint in the steering must be watched
INDIVIDUALLY and then
FELT just to make sure. Sometimes you can
FEEL something you can't see. This applies to your control arms as well. You hopefully have adjustable control arms.
IF all joints appear and feel tight, check the track bar mounts. The holes can elongate and cause DW. Even a small elongation here is critical. Track bars are the first problem
USUALLY. The bolts in the track bar mounts can wear and have a shoulder on them too. If either of these is the problem, have a qualified 4x4 shop over bore the holes and weld in special sleeve that will actually give you more bearing surface than the stock plate from the factory. I would upgrade to a grade 8 bolt too. Check the Control arms for the same thing. They have a tendency to elongate the mount bores and wear the bolts too.
Next, check the ball joints. Many of the alignment shops do a poor job of checking these. These can be a contributor to your DW.
If that doesn't clear things up, check that your wheel bearings are torqued correctly. Having loose or worn wheel bearings allow the wheels to wobble. BTW, take your steering dampener (most idiots call these a stabilizer which it is NOT) loose or off when you are test driving. These damn things hide your problems. I don't even run with one.
Next, if they didn't already give you one, get a print out of the alignment specs when they "aligned" your rig. Check it against the stock alignment specifications. The caster is your critical spec. When you add a lift to any vehicle, the angles on the suspension change. The rule of thumb is to raise your pinion about 1 degree after three inches of lift. 2" lifts
USUALLY don't require this, but if it was on the low side to begin with, this can cause a problem. Raising the pinion
MIGHT help. The other thing at this point is the toe. Especially if you change the caster, reset the toe to about 1/8" toe in.
When you take it to an alignment shop, ask how many Jeep Wranglers the tech has done. If few or none, go somewhere else. They are just practicing on your dollar. It takes someone with a head full of suspension savvy and EXPERIENCE to cure a DW on a Wrangler. I have fixed some that several other shops have given up on, trust me, if they've not done at least 4 or more times, they aren't your man. 95% of these guys don't know enough about what the hell they are doing to be of any help to you.
Last, when you are checking for loose joints, remember that a little here and there add up to a big movement. Just because one joint has just a little in it, don't forget that. An accumulation of little movements add up to DW. I've seen guys replace one joint and no DW for a while, and then it's back. They didn't chase the gremlin far enough.
DW is seldom a "here's your problem" fix. Sometimes, but seldom. And these guys that tell you to balance or rotate your tires, don't listen to them. If your steering and suspension is in good working order, you can have some shimmying or vibration, but never a DW. Tires can trigger a DW, but they are NOT the cause... EVER!!
Good luck.
Hey guys. I have a 2010 jk with a 2 inch lift. I have put on bigger tires, replaced tie rods, steering stabilizer, track bar, and had it realigned multiple times, but the death wobble will just not stop. This is a huge problem for me, considering I travel a few exits on the highway daily. I love my jeep to death and I can't part with it. Please help