2014 F350 Vibration

Dave H M wrote:

720Deere wrote:
This topic has been beaten to death on this and many other forums. It has been a problem on the Superduty trucks ever since there was a Superduty. Personally, I wouldn't waste my time with the shims. Most people find that changing the angle will fix the problem loaded but then it shows up empty. Airbags help, in fact it is nearly non-existent on my 2011 F350 towing a fifth wheel with a pin weight of over 3,100 lbs with approximately 50 psi in the Firestone airbags. If your rear suspension settles 3" or more under load, airbags may be a good option for you. Some will suggest Timbrens, but that system gives you no flexibility to adjust ride height which is what ultimately fixes your issue. The only fool proof fix would be traction bars to prevent axle wrap from changing the pinion angle which is what is causing your problem.

I just lived with the problem on my 06 and never added airbags. The truck had 88,000 miles when I traded it on the 2011 and never had a problem with u-joints or the pinion bearing and that truck did a lot of heavy towing. Other than the fact that it is annoying and makes you feel that something is wrong with the truck, I haven't found it to be harmful to the truck. If the problem persisted beyond takeoff, I would be more concerned.

Agreed. I went thru lots of gyrations chasing that shudder in my F250.

After all the pfarting around, air bags were the simple solution. take the squat out and it would not shudder.