There are many parts on a car. We may not pay attention to them when we drive, but in fact, every small part is working silently. Automotive driveline slip yoke is a part installed on the drive shaft. You can think of it as a joint that can "slide". When the car is running, the body will shake up and down due to the ups and downs of the road, and the drive shaft will move with it. If the drive shaft is completely fixed, it is easy to break or loosen.