Final answer:
Lack of proper lubrication is one of the most common causes of universal joint and driveshaft failures. Regular lubrication helps reduce friction and wear, ensuring their smooth operation and longevity.
Step-by-step explanation:
Lack of proper lubrication is one of the most common causes of universal joint and driveshaft failures. Universal joints and driveshafts require regular lubrication to reduce friction and wear between the moving parts. Without proper lubrication, the joints and shafts can experience increased friction and heat, leading to premature failure.
For example, if a universal joint does not receive sufficient lubrication, the metal components can start rubbing against each other, causing excessive wear. This wear can lead to radial play, where there is excessive movement in the joint, reducing its stability. Over time, the lack of lubrication can cause the joint to fail completely.
In summary, proper lubrication is crucial to prevent universal joint and driveshaft failures. Regularly lubricating these components helps reduce friction and wear, ensuring their smooth operation and longevity.