i am going to try to explain this... hope i dont confuse. anyone experience a weird feeling and a noise when going over certain level bumps. it is like the box or rear end is hopping around and will exert 5 or 6 real short hopping felling??

 

I noticed the same sort of thing, reverb sort of vibration, it didn't happen in my 04

 

exactly what i am describing... what the heck is causing it. i have been in 3 different trucks other than mine and they do not do it??

 

Hope your truck not missing this:


https://www.f150forum.com/showthread...ight=vibration

 

Is a vibration like the ABS system. Mine does this when I go from road to parking lot that is elevated about 1.5ft. When i turn in there, truck still turning and going up the ramp the truck's abs/sc kicks in for a second (though no light ever comes on). Is this what you feel/hear?

 

yeah it very well could be. it is usually when i am turning that i feel it.

 

mine has a scrubbing noise under the left front, cant figure it out.

 

I hear something like that too when turning into a spot where the ground is uneven. Sounds like there is something bottoming out on the front end, doesn't sound like it's coming from the back.