The differential case (or differential housing) is a critical component that bridges the driveshaft and the axle shafts. It receives torque from the driveshaft and transmits it to the internal planetary gear set, which ultimately distributes power to the left and right wheels to achieve the 'differential' function. While this component does not generate power directly, it serves as the 'invisible skeleton' that ensures smooth cornering, reliable drive, and high transmission efficiency. Its manufacturing precision directly impacts the vehicle's overall handling stability and drivetrain performance