Forum Discussion
FishOnOne
Jun 06, 2021Nomad
Grit dog wrote:
Interesting diagnoses. Not that u-joints or unit bearings don’t need to be replaced periodically, but something doesn’t sound right. You front axle u joints and axle shafts should even be turning when in 2 wd and even a bad u joint wouldnt exhibit any driveability issues on a super duty in 2wd. Did you drive it with the hubs locked in forever?
Yes this is where is was going as well. The Super Duty's have lockers on the front hubs that allow you to disconnect the front axles so they don't turn while driving. Perhaps you have yours locked in manual mode and they're constantly turning while driving even while your in 2 wheel drive.
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