I just had the same problem with my 2011 f250. I left it for my wife to drive while I was out of town. I knew the tires had to be replaced as they were getting bad but was hoping to get some in the next couple weeks. Well she called me and said the truck would shake really bad at 60. When I got home I drove the truck and it was pretty bad. I got up to 65 and one point and didn't realize it cause it wasn't shaking then all of a sudden it started to shake and about ripped the steering wheel out of my hands. I took it up to my mechanic cause I thought it was a track bar issue. He called me an hour later and said it was a bad tire and the belt broke. I know you said you had them balanced but it could be that

 

With that type of shake and the occurrence of it I would be looking at your rear driveshaft universal joints and carrier bearing for play and check all fasteners to make sure they are tight.

 

Thanks good tip

 

Haven't had a chance to jack it up on jackstands and take a good look at it but will definitely take a look at it and make sure it's all tightened up. Thank you for your input.

 

Tires are pretty new I don't think it would be that but I'll look into it . Thanks

 

One of the biggest mistakes you can make is to think that a newer part (like your tires) are not the culprit because they are not that old. AT this point, suspect everything unless you have proven it good.

 

Firestone transforce ht 235/85/16
They seem to be in good shape still .
Ford dealer told me the tires I have on are crap. And that I should change them .

 

Up on jack stands

 

The rotors are not the problem. They can shake the brake pedal, when you're using it.

Tires are very heavy compared to the rotor. When they shake, it gets your attention.

 

Have you tried doing that with the tires on it?

 

I agree with firebirdparts. The way it is shaking the contents in the door panels (very fast and not violent) it is something smaller in diameter that does not have a lot of centrifugal force. The tires on your truck are large and do not make rotations as fast as the items in the door are shaking back in forth. The tires would be shaking with a lot more force too. From my experience I would be looking at your drive shaft u joints, carrier bearings, and attachment straps. Take a large pry bar and insert it in u joint connections. Pry it back and forth to see if there is any movement in the universal joints and carrier bearing.

 

Thanks for the input.
I'll do that soon.
How much play ,is to much to consider replacement. Those areas you speak of should generaly have some play right?

 

The carrier bearing is encased in a rubber isolator and it does have some play in the isolator. The bearing it self should not have any movement. Pry up on the driveshaft and when the isolator stops moveing look closely at the bearing where the driveshaft passes through, if it shows any movement there then yes you need to replace it. Usually though those carrier bearings hold up for a good while, it is the rear universal joint at the rear axle pinion yoke that is the first to go.

When checking u joints, set the parking brake on the vehicle, chock both sides of each rear wheel to prevent vehicle movement in any direction, and place the transmission into neutral. Insert a pry bar in between the yokes of the driveshafts and the u joints. Pry on the yoke like you are trying to turn the driveshaft and look for any movement what so ever in the u joint, if you see any then the joint needs to be replaced. Repeat this at all universal joint locations in the driveshaft. They are supposed to hold a tight tolerance and no movement is acceptable. If you have movement then the two driveshafts are not running in the same rotational centerline and a vibration in that line is produced.

I hope this helps, sorry for the long explanation, I've been working on cars and trucks since I was 5, it is second nature and a lot is easier said then done when trying to decibe it with detail . I just hope I did not provide any confusion. I will say this, $40.00 for a u joint is a lot easier to spend then $1000.00 for tires.

 

They may not be great tires, however if you've had them balanced and the shop performing the work didn't mention any issues with the tires; it is unlikely that the tires are an issue, even if they are a little heavy on the balance weights.

Judging by your posted videos, you have a drivetrain or suspension issue.

Question does the vibration change when you are under acceleration?

 

If it's the tires, and the truck is jacked up with jacks under the axle, then the truck won't shake on jacks. So that's a useful test, but it may not be what you think.

When you are going down the road, and the tires are shaking, the axle is going up and down a bunch. The jacks don't allow it to do that.