Add to Cart Quaife Alfa Romeo Gtv Quaife Atb Helical Lsd Differential, Qdh2K-5 $834.91 Quaife ATB Helical LSD differential for Alfa Romeo GTV is a direct replacement for the standard Alfa Romeo open differential. The Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style limited slip... $834.91 Add to Cart