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I often see threads about the "death wobble" on this forum and I just found a nice article on diagnosing it. Here are 11 ways to cure the death wobble:
My new to me 2013 F350 has death Wobble so I took it back to the dealer to fix and they said they couldnt duplicate the problem. Then they suggested I let the tech take my $40K truck home for the night so he can try to duplicate on his ride home and back to work....I declined
There are loads of people who have tried all sorts of methods to cure the death wobble, some have had success some havent. One of the FTE members here EpicCowlick did a few changes on his truck and seemed happy with the results of the changes.
You can see what he did and some shots of the before and after the installation of him going over a pothole. Have a look for those that are curious
Stealership says the front end is all good and tight and trackbar bushings and damper were previously replaced. and of course they cant duplicate the problem.
I have had 3 SD's and never experienced the death wobble myself, buy plenty of others have and I agree with you that you definetly seem to have it and I can imagined how that would be a little unnerving going down the road.
Maybe some of the others here can help with some suggestions for you. Honestly the dealers can be hit and miss when it comes to the death wobble, I dont think some of them know who to cure it except throw parts at it. Well they ought to have a look at your video, they might change their opinion.
Stealership says the front end is all good and tight and trackbar bushings and damper were previously replaced. and of course they cant duplicate the problem.
Driver side tie rod end is loose. If you slow the video down you can see the knuckle move independent of the rod end.
I experienced death wobble on the drive home from purchasing my used 11 F250. I was initially pissed until I talked to my BIL. He works at a dealership that only sells super duty trucks (250 & up). He said they struggled for a while to address this until they hit upon a method that they have seen success with. They install slugs to change the caster to +.10 degrees. This solution serves them well, and I have not experienced death wobble since having this done.