F 450 4WD Super Duty V10-6.8L VIN D (2004)
Drive Belt: Description and Operation
Accessory Drive
The accessory drive:
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has a single serpentine drive belt.
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has automatic tensioning.
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is not adjustable.
5.4L, 6.8L Without A/C
5.4L & 6.8L With A/C
6.0L Diesel With Single Generator