2004 f350 front end issues.

[01lightning04stroke]

My truck has had this issue for some time and I can't figure it out. To start at almost any speed I can feel and hear a light grinding it will vary when I touch the go pedal. Truck also is pulling pretty hard to the drivers side exspecially at highway speeds. And when a apply my brakes at about 45 to 40 mph when slowing down I am getting a bouncing/shimmy until about 30 mph. I took the wheel bearing hub assembly apart and noticed the bearing and knuckle seal have been making contact and rubbing on each other. Any ideas would be great. Thanks guys

[mint-6oh]

When you took it apart how did the axle shaft look where it goes through the wheel bearing/hub? those needle bearings can go bad and chew up the axle

[01lightning04stroke]

I noticed no wear on the shaft I thought the same thing myself.

[01lightning04stroke]

It sounds like a wheel bearing the way it hums a bit. But it's the third one I've put in. I also have warn pro hubs installed.

[01lightning04stroke]

Also I have a difficult time removing and installing the axle into the differential. It just doesn't slide in or pull out. I either need a small bar or dead blow to install.

[01lightning04stroke]

Any ideas anyone?

[01lightning04stroke]

Up to the top

[Karls03]

Bouncing/shimmy on the brakes is usually a warped rotor.

With axle on jackstand, grab tire at 6 & 12 and shake, then try again at 3 & 9. Could have a bad bearing. Prying up with a pry bar or length of 2x4 will tell if ball joints are bad.

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[01lightning04stroke]

I have now replaced both wheel bearing caliper and rotor on drivers side and rebuilt the front driveshaft. Trucks still pulls to the left and bounces. I can watch the wheel twitch to the left more and more when braking. when towing its a little worst with the pulling.

[6pointbroken]

Does your steering wheel shake violently? If so I would check ball joints, and the track arm.