Hello there! I have a 1994 JZ Grand Cherokee. That I Just purchased last month. It arrived with a bad case of the death wobbles. I figure not a problem, so I started looking and found a bad Track bar. Not a problem replaced it it also had arrived with bad upper and lower ball joints. replaced them as well. took it for a drive, It had improved, went from 10 MPH to 25. Went back to looking and found that the bushing in the lower control arms were bad, well I figured what the heck I'll replace the uppers as well just in case. also noticed that there was a little slop in the spindle barrings. So I replaced them as well. Took it out again and got up to a whopping 35 MPH before it shook the wheel out of my hands. So back to the garage look again. Well the steering dampener has a dent on the side, so I replaced that and the drag link and tie rod ends are a little sloppy so changed them as well. Out on the road again.
Now I have changed out almost everything and the previous owner had changed the axles and cv joints before I got it with receipts from last Sept. It will go up to 45 now. But hit a bump and you are in full blown wobble.
Oh yea almost forgot had Les Schwab do a tire balance and rotation plus a front end aliment. Don't know what else to do???? Has anyone had this happen to them if so please help me out!!!

 

Must be the caster of the axle. (how far it leans forward/backwards) Got a 4x4 shop around town? Also, tighten the HELL out of all the bolts, and check your shocks. I had a three inch gap in the middle of my front shocks that had NO resistance what so ever. So compress them by hand the whole way through.

those helped me, still havnt beat this b**** yet.

 

Solution:
Sell your ZJ, and buy a seXJ

 

True, you'll be happier with a XJ. Okay, back on topic!!!

 

Thx. It's a place to start, I'm totally out of idea's. Will give it a look see hope its that simple. Thanks again.
Hilbillyblu.

 

Did you ever get it straightened out? I am at that point right now with my xj.......don't know what else to replace.

 

Check your hub assemblies

 

You say check my hub assy. check it for what is there anything specific I should be looking for. Or just loose or broken?
Thx.

 

Have you had your tires checked for balance. I just spent two months replacing every component in my front end and at the end of it all it still wobbled. I swapped out the two front tires for good ones and it fixed the wobble instantly. It's a LOT more common than you'd think.

 

Jack up the front end and shake the tire if there's Any play, as long as you've replaced everything else that was bad, its probably shot.

 

I also just figured out that even though my ball joint are brand new, they were poor quality ones. I jacked it up to check them for the hell of it and brand new lower ball joint allows the tire to play side to side. I'm going to be swapping out with some spicer ones soon. Might wanna check into that too