Ford4x4LIFE

Parking brake did this for me.
Also if the tie rods were loose you'd feel it towards the front of the truck. More of a wobble.

Envro

I have the same problem with my 04 f150 lariat 2wd! I bought new tires, rotors, still over 70mph

F150-ATV

What was wrong with your parking brake? Not releasing all the way?

My front end is tight. No play at all..

F150-ATV

Does the inside of your cab shake like hell? I have change in my cup holder and it rattles like hell lol. Even have to open the rear window a little or the handle makes an annoying noise..

F150-ATV

Already did and they said theres no where to drive 70 around them..

PerryB

Does that truck have a center support bearing on the driveshaft?

F150-ATV

Yes it does.

F150-ATV

Had the rear of my truck jacked up. Had my father watch the rear while I got up to speed. At 70 mph the viberation was coming from the right side. The leaf springs were moving up and down on the right side. Left side side were steady. Bent axle?

powerranger262

I would maybe suspect that carrier bearing.
Also, you didn't mention, is it 4wd or 2wd?

powerranger262

...nevermind, I was typing while you were posting the last thing about the right rear shaking.
How many miles are on the tires, and are they goodyears?