Yesterday on the road I saw a new or nearly new (2019 or newer) Ford Super Duty dually 4–door pickup that had a sudden front-end problem. It appeared to have 4wd, and it was pulling a relatively light trailer at 60 mph. It did not look as if it had a lot of miles on it.
The truck pulled on the shoulder and slowed. Suddenly I saw the left front wheel violently wobble as if it had somehow been mounted off-center in relation to the axle, then it straightened out, then wobbled again. It continued the wobbling/straightening out until the driver pulled off at an exit to get to a truck stop with a service area. I was passing the truck with a w-i-d-e berth and couldn't see whether the right front wheel was doing this too.
What on earth would cause that? This was way beyond what being out of balance and needing a wheel weight would cause. Front drivetrain failure? If so, what? Is this a known problem for these trucks?
The truck pulled on the shoulder and slowed. Suddenly I saw the left front wheel violently wobble as if it had somehow been mounted off-center in relation to the axle, then it straightened out, then wobbled again. It continued the wobbling/straightening out until the driver pulled off at an exit to get to a truck stop with a service area. I was passing the truck with a w-i-d-e berth and couldn't see whether the right front wheel was doing this too.
What on earth would cause that? This was way beyond what being out of balance and needing a wheel weight would cause. Front drivetrain failure? If so, what? Is this a known problem for these trucks?