Workshop Manual

4C–71
DRIVE SHAFT SYSTEM
Diagnosis of Propeller Shaft and
Universal Joint
Condition Possible cause Correction
Universal Joint Noise.
Worn universal joint bearings. Replace.
Improper lubrication. Lubricate as directed.
Loose flange bolts. Tighten to specifications.
Ping, Snap, or Click in Drive Line
(Usually Heard on Initial Load after
the Transmission is in Forward or
Reverse Gear)
Loose bushing bolts on the rear
springs or upper and lower control
arms.
Tighten the bolts to specified torque.
R
everse
G
ear
)
Loose or out-of-phase end yoke. Remove end yoke, turn 180 degrees
from its original position, lubricate the
splines and reinstall. Tighten the
bolts and pinion nut to specified
torque.
Knocking or Clanking Noise in the
Driveline when in High or Neutral
Gear at 16km/h(10mph)
Worn or damaged universal joint Replace the universal joint.
Squeak Lack of lubricant. Lubricate joints and splines. Also
check for worn or brinelled parts.
Shudder on Acceleration (Low
Speed)
Loose or missing bolts at the flanges. Replace or tighten bolts to specified
torque.
Incorrectly set front joint angle. Install shim under the transmission
support mount to change the front
joint angle.
Worn universal joint. Replace.
Vibration
Incorrect shaft runout. Replace.
Shaft out of balance. Adjust.
Transmission rear housing bushing,
transfer case housing bushing worn.
Replace.
Yoke spline jammed. Replace.
Excessive Leak at the Front Spline
Yoke of Rear Propeller Shaft
Rough surface on splined yoke;
burred nicked or worn.
Replace the seal. Minor burrs can be
Smoothed by careful use of crocus
cloth or fine stone honing. Replace
the yoke if badly burred.
Defective transmission rear oil seal. Replace the transmission rear oil
seal and replenish the transmission
oil.