Rumble and vibration

2011 DCSB 4WD
210000 miles
Front/Rear U Joints and Carrier Bearing at 200K and rear driveline balanced
Inner/Outer Tie Rods 200K
P/S flush at 200K (Original P/S pump and Rack and Pinion)
New Water Pump and Idler Pulleys 190K
Original Alternator 13.4v at cruise speed 50mph +

Rumble and Vibration felt through steering wheel, gas pedal and floor board. No relation to engine speed but does increase/decrease with vehicle speed. At highway speed if trans placed in neutral and rpm allowed to drop does not impact rumble/vibration. Turning either direction has no impact either. Any input would be appreciated. Thanks

 

Bad tire?

 

Thanks. Had not thought about that primarily due to new Michelin Defender LTX at 190K but could be defect.

 

Does it decrease in 4WD?

I'm thinking either front needle bearing or wheel bearings.

 

Well I had not thought about or tried that either. I will investigate that. I really appreciate this forum along with the knowledge and input given. Thanks

 

guessing front wheel bearings also. My first started to vibrate at about 220,000 miles and I replaced both at the same time. Smooth as silk down the highway now.

 

Thank you. After searching the forum and reading needle bearing and front wheel bearing threads it seems to be leaning that direction.

 

When my needle bearing went bad, I just got a vibration. And you didn’t really notice it until about 40ish mph.
It didn’t rumble and you couldn’t feel it in the steering wheel.

But you could feel a vibration when the wheel bearing went bad. Plus the obviously roaring when going around turns.

 

Thank you for your input