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Home >> Ford >> 2004 >> Excursion 6.8 S, 4WD >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Locking Hubs >> Four-Wheel Drive Systems - Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Four-Wheel Drive Systems - Mechanical Shift >> Principles of Operation >> Manual Override

Manual Override

The hub locks have manual override selector dials which, when rotated to the "lock" position, will keep the mechanism locked regardless of the instrument panel 4X4 mode switch position. Verify that both dials are in "auto" before evaluating ESOF operation.