A drive shaft is a mechanical component that transmits power from the engine to the wheels of a vehicle. It is typically a long, cylindrical rod made of strong materials like steel or aluminum. The drive shaft connects the transmission to the differential, allowing the vehicle to move by transferring rotational energy. In many vehicles, especially those with rear-wheel drive, the drive shaft plays a crucial role in the drivetrain system. It must be designed to handle high torque and rotational speeds while maintaining balance and stability. Proper maintenance of the drive shaft is essential for optimal vehicle performance and safety.