Ok I have a 90 xj with 4.5 lift. just recently everytime I hit a bump at speeds over 25 mph, I get a terrible wobble coming from the right side of the jeep. It feels like the tire is about to come off, I will pull over and stop then take off again and everything is fine. I do not feel it in the steering whell. It does it maybe once or twice a week. I have jacked it up and looked for anything loose and cannot find anything. Any ideas?

Thanks

 

Maybe its out of balance..or the tire is bad.

Go ahead and check the normal Death wobble culprits..better safe than sorry:
Tie rod ends, ball joints, tire balance, control arm bushings, allignment.

 

xj88 is on point. balance, alignement, or worn parts. may not be possible to get the correct caster angle with your current control arms either.

 

Dont forget to check your hubs and lugs as well easily over looked . . Also have someone sit in the jeep and turn the steering wheel back and forth and look for any loose or worn parts