Hombre S Space Cab 2WD V6-4.3L (2000)
The propeller shaft has the yoke lugs (ears) in line and in phase with each other. This design produces a smooth running shaft.
An out-of-phase propeller shaft causes vibration. The propeller shaft generates vibration from speeding up and slowing down each time the universal
joint turns. This vibration is like someone snapping a rope and watching the wave reaction flow to the end.
An in-phase propeller shaft is like two persons snapping a rope at the same time, then watching the waves meet and cancel each other. A total
cancellation of vibration produces a smooth flow of power in the driveline. The phasing of a propeller shaft is formed between the front and the center
universal joints. Before removal, reference mark the front and rear propeller shafts. Reinstallation will ensure proper phasing. Some splined propeller
shaft slip yokes are keyed to ensure proper phasing.
Universal Joint Description
During acceleration and braking, the universal joint components handle the effects of various loadings and rear axle windup. The universal joint
operates efficiently and safely within the designed angle variations. The operational life of the joint may decrease when you change or exceed the
design angle.
Universal joints have needle roller type bearings. Round bearing cups hold the needle rollers in place on the trunnions. Snap rings or injected plastic
hold the bearing cups in the yokes. The OEM lubricates the universal joints for life. You cannot lubricate the universal joints.
Constant Velocity Joint Description
The constant velocity (CV) joint allows the driveline angle adjustment with up and down movement of the vehicle without disturbing the power flow.
The CV joint is composed of the following components:
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An outer bearing retainer
^
A flange
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A spring
^
A cap
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A circlip
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An inner bearing assembly
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A wire ring
The inner bearing assembly includes the following components:
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A bearing cage
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Six ball bearings
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An inner race
Center Bearing Description
The two-piece propeller shaft has a center bearing to support the front shaft. The center bearing is a ball type bearing mounted in a rubber cushion and
hanger bracket. The hanger bracket fastens to a crossmember. The center bearing is prelubricated, factory sealed and replaced as a complete unit. The
center bearing cannot be overhauled.
