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  1. Front End Intermittant Vibe 4x4

    99-03 7.3 Drivetrain Problems
    '01 F-250 SD XLT 7.3ℓ 4x4 While in 2WD and slow speeds, Drive over a bump and a vibe starts coming from the front end. The ways I have found to stop the vibe is to: Engage 4HI, stop, or hitting another bump works sometimes. This does not happen while in 4HI. Could this be the 4WD driveshaft...