Add to Cart Quaife Vauxhall Calibra Turbo 4X4 (Rear) Quaife Atb Helical Lsd Differential, Qdf26B $929.66 Quaife ATB Helical LSD differential for Vauxhall Calibra Turbo 4X4 (rear) is suitable for Vauxhall Calibra Turbo 4X4 models. A direct replacement for the standard Vauxhall open differential, the Quaife ATB Helical LSD differential transforms your... $929.66 Add to Cart