Fusion AWD V6-3.0L (2009)
Universal Joint: Description and Operation
Universal Joints
The U-joints consist of the following:
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A single spider (cross)
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Lubed-for-life design and require no periodic lubrication
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Nylon thrust washers, located at each base of the bearing cup, which control end play, position the needle bearing and improve grease movement
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Grease seals located at the opening of each bearing cup to retain the grease for the bearing lubrication
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Bearing cups that retain the needle bearings and locate the spider on the centerline of the shaft bore to control shaft runout and balance
The U-joints are staked in place and are not serviced individually. If worn or damaged, install a new driveshaft assembly.
The U-joints in this driveshaft assembly allow the driveshaft tubes to rotate smoothly through the varying angles of the Power Transfer Unit (PTU), the
center support bearings and the Rear Drive Unit (RDU). The angles that cause the U-joints to accelerate and decelerate may cause vibration in the
driveshaft assembly if the angles are either too great or too small.
