Expedition 2WD V8-5.4L (2009)
Universal Joint: Description and Operation
Universal Joints
U-joints are composed of the following:
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Spiders
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Trunnions
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Grease seals
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Needle rollers
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Bearing cups
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Thrust washers
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Snap rings
The U-joint is a method of connecting the driveshaft to the drive axle. A U-joint allows the angles of the output shafts, driveshafts and pinions to rotate
smoothly while constantly accelerating and decelerating. The U-joint is lubricated for the life of the vehicle.
