The main parts of a driveshaft include the shaft itself, universal joints (U-joints), slip yokes, center support bearings (if applicable), and sometimes CV joints (constant velocity joints).

Common signs of a failing driveshaft include excessive vibration, clunking or rattling noises, difficulty turning or steering, and a noticeable decrease in acceleration or power.

Driveshaft parts should be inspected regularly, especially if you notice any of the aforementioned signs of failure. Replacement intervals can vary depending on driving conditions, but it's generally recommended to inspect driveshaft components during routine maintenance checks.

While some driveshaft maintenance tasks, like greasing U-joints, can be done by experienced DIYers, more complex tasks such as driveshaft removal or replacement are often best left to professional mechanics with the necessary tools and expertise.

Driveshaft failure can be caused by a variety of factors, including worn universal joints, damaged or bent shafts, imbalanced or improperly installed driveshafts, excessive torque or load, and lack of proper lubrication.

Regular inspection, proper maintenance, and addressing any signs of wear or damage promptly can help prolong the life of your driveshaft parts. Additionally, avoiding harsh driving conditions and ensuring proper alignment and balance can also contribute to longevity.

While quality can vary among aftermarket brands, many aftermarket driveshaft parts are manufactured to meet or exceed OEM standards and can offer reliable performance at a more affordable price. It's essential to research reputable brands and consult with automotive professionals when considering aftermarket options.

In some cases, driveshaft components like universal joints or center support bearings can be replaced individually. However, if the shaft itself is severely damaged or compromised, it may need to be replaced entirely for optimal safety and performance.