A failed U-joint or damaged drive shaft can exhibit a variety of symptoms. A clunk that is heard when the transmission
is shifted into gear is the most obvious. You can also encounter unusual noise, roughness, or vibration.
To help differentiate a potential drive train problem from other common sources of noise or vibration, it is
important to note the speed and driving conditions at which the problem occurs. As a general guide, a worn
U-joint is most noticeable during acceleration or deceleration and is less speed sensitive than an unbalanced tire
(commonly occurring in the 30 to 60 mph [50 to 100 km/h] range) or a bad wheel bearing (more noticeable at higher speeds). Unfortunately, it is often very difficult to accurately pinpoint drive train problems with only a road