The English manufacturer RT Quaife Engineering can look back on a long tradition in the field of construction & production of differential barriers and is today one of the market leaders in this field. Therefore, Quaife locking differentials are installed by the car manufacturers in some vehicles such as Ford Focus RS and RS500 ex-factory. But Quaife products are also used in motorsport and are used in Formula 1, rally, circuits or drift vehicles. Differential locks are especially recommended for vehicles with an increase in performance in order to make optimum use of the driving force/torque. In the event of loss of traction, the Torsen lock automatically transmits more drive power to the wheel with more traction. The balancing gear with self-locking effect (Torsen principle) is particularly suitable for everyday use as there are no restrictions on acceleration, deceleration or cornering, as is the case with differential locks with a fixed locking value.