HWY vibration

[Bergy1]

My 03 develops a vibration that increases with speed. Begins around 60 mph and increases up to 75-80 mph, which is as fast as I've gone and that is where it is most noticeable. It is a very steady vibration, not enough to shake the mirrors, but enough to shake items inside the vehicle i.e. console, bags on the back seat etc... The vibration is definitely in the rear of the vehicle.

Pulled rear wheels, both seem very tight without any wobbly. Pretty sure the bearings are good unless they can be bad without these signs??

All driveshaft u-joints seem to be in very good shape without any movement.

The rear driver side stabilizer bar mount bushings are wore to the point of there being a lot of wobble 1/4" at least on both ends. Passenger side is good. Could this alone cause this vibration at hwy speeds?

I have ordered the parts to get this fixed.

Thanks



2003 100

 

[Xetabur]

Pulsing/droning vibration at highway speeds

 

[Bergy1]

I posted at the end of that post but didn't want to hi-jack it. Don't believe those issues are mine.

Thanks


2003 100

 

[Bergy1]

Okay. Pulled drive shaft off. Both u joints are in very good shape.

Dropped spare and put on driver side rear. Vibration still there. Swapped passenger rear and no more vibration!! Going to replace spare with new tire matching tires which are pretty new and then put the tire with vibration under the truck. I did just have both rears balanced trying to find vibration.


2003 100