Bad Vibration

[Cory@RPHC]

So I just noticed the other day this problem. As I was going 60+ mph and if I take a hard turn or hit a pretty good bump the truck starts shaking horribly. I have to slow down to around 40 mph for the vibration to go away. Looked underneath and nothing looks bad. Was told it might be a wheel bearing?

 

[7.3powerstroke00]

4x4? Also is it felt in the steering wheel? Sounds like could be a weak or bad steering stabilizer...

 

[Cory@RPHC]

Yep 4x4 and yeah almost shakes the wheel outta my hand

 

[7.3powerstroke00]

I would check tie rods, ball joints, wheel bearings, and definitely check the trac bar. just to make sure they do not have any wear or slack. And more than likely replace the steering stabilizer. It wouldn't hurt to see if there is something stronger than OEM style, like rancho ECT... I had an 09 CCLB 4x4 that would do the "death wobble" when it had the factory 20s on it.

 

[powerstrokinfirefighter]

Sounds like death wobble. I would definitely check the track bar

 

[08BIGRIG]

Check the tie rods on both wheels as well as the track bar bushings. I had the death wobble really bad just like you are saying and I replaced the track bar bushing and the tie rod ends and it was gone.