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LESSON 2: CHASSIS
Driveshaft
Driveshaft
•
Navigator 4x2 models use a unique 2-piece driveshaft.
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Staked U-Joint Service.
– The original u-joints are staked in place. There is no retaining clip.
– The factory u-joints require the use of a special cutting tool to remove the stakes prior to the removal of the
u-joint cups. After appropriately mounting the driveshaft in a vise, the cutting tool (which is part of the
u-joint replacement kit) is rotated by using a ratchet handle to remove the stakes. Once the stakes are
removed, remove and replace the u-joints in the conventional manner. Refer the appropriate section of the
Workshop Manual for further details.
•
New torsional dampener.
– A torsional dampener effectively isolates vibrations produced within the driveline from the rest of the
vehicle.
2005 Expedition/Navigator New Model Technician Training 02-SEP-04 2-11