The differential gear is an essential part of the cars powertrain, it basically designed to transfer engine power to wheels while allowing the wheels to rotate at different speeds. This is important for driving around corners smoothly and keeping the car stable. The differential gear serves a few main purposes: to distribute torque, varying speed between wheels to allow different wheel speeds when going around turns. The differential gear, in its most common implementation, features a complex tangle of teeth that make sure the two wheels can run at different speeds without causing wheel slip. It works by balancing the forward and backward hole, known as torque vectoring to manage performance along with improving safety during driving maneuvers in cars, trucks and other over two opposite side's vehicles.