Add to Cart Quaife Lancia Dedra Quaife Atb Helical Lsd Differential, Qdh2K-28 $841.12 Quaife ATB Helical LSD differential for the Lancia Dedra is a direct replacement for the standard Lancia Dedra open differential. The Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style... $841.12 Add to Cart