I am having a very bad vibe coming from the front end of my 99 jeep cherokee. When i take the driveline out it goes away. I have already changed the driveline with a brand new dana/spicer with x760 ujoints and its still there. i have also replaced both front wheel hub assembly and the cv ujoints for the axle shafts. the carrier and pinion bearings have also been replaced and the transfer case also. It spent a week at the drivetrain shop and so far I'm 2000 bucks into this problem and am pullin my hair out. I have even had the rear driveline balanced and replaced those ujoints and the rear wheel bearings. And new tires and brakes. The vibe starts at 20mph and gets worse as it goes up to 80mph. It does not have a lift and is completely stock. Any help would be greatly appreciated. I am trying to ship the jeep to england for my next duty station.

 

[QUOTE="ramalm;733535"]I am having a very bad vibe coming from the front end of my 99 jeep cherokee. When i take the driveline out it goes away. I have already changed the driveline with a brand new dana/spicer with x760 ujoints and its still there. i have also replaced both front wheel hub assembly and the cv ujoints for the axle shafts. the carrier and pinion bearings have also been replaced and the transfer case also. It spent a week at the drivetrain shop and so far I'm 2000 bucks into this problem and am pullin my hair out. I have even had the rear driveline balanced and replaced those ujoints and the rear wheel bearings. And new tires and brakes. The vibe starts at 20mph and gets worse as it goes up to 80mph. It does not have a lift and is completely stock. Any help would be greatly appreciated. I am trying to ship the jeep to england for my next duty station.

 

sounds like the front driveshaft needs to be rebalanced and/or the ball in the double cardan joint on the front driveshaft is toast.

 

Yes it does but it's had 3 new drivelines put in it. The last one was a Dana brand complete unit built by a driveline shop and balanced.

 

What are the control arm bushings like?

 

Not really sure I just replaced the track bar to fix the road wandering. But it did not fix much. Could those being worn out cause that? It doesn't look like the pinion angle is out to cause that much vibe.

 

When you remove shaft it stops ?possible bent yoke or shafts where yokes bolt on ?

 

My control arms wiggle when i twist them with weight on the axle. If my pinion angle is angled up and not level or down could this be the problem. Also could this be my wandering problem not "bumpsteer" but wandering like the axle and steering stays put but the front body wanders.