Add to Cart Quaife Ford Usa 9" Live Axle Quaife Atb Helical Lsd Differential, Qdh1R $829.28 Quaife ATB Helical LSD differential for the Ford 9" is for a variety of model. A direct replacement for the standard open differential, the Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style limited... $829.28 Add to Cart