The torque of a universal joint is the twisting force that is applied to an object, such as a transmission or drive shaft. It is measured in foot-pounds (ft-lbs) and serves as an essential component in the operation of any vehicle with an internal combustion engine. At its most basic level, torque is defined as a measure of how much rotational force an object can exert on another object when it's rotated around its own axis. For example, when you turn your car’s steering wheel, what you're actually doing is applying torque to the steering column which then turns the wheels and propels your vehicle forward. In automotive applications, torque plays a key role in producing motion through engines and other powertrain components like transmissions, driveshafts and axles. Universal joints are crucial for enabling smoother operation between two connected parts at different angles due to their ability to transfer rotational forces without causing friction or wear on either side. Therefore, they allow for more efficient transmission of power while also reducing noise levels from vibrations caused by misalignment between parts during movement. By providing consistent torque throughout rotation cycles ,universal joints help increase fuel efficiency and reduce emissions while ensuring smooth functioning of all related systems within vehicles .