Helical Limited-Slip Differential

The Blackline HLF061/111 is a helical limited-slip differential designed for Volkswagen models equipped with the 5-speed 020 gearbox and a 111mm crown wheel. It offers a direct performance upgrade over the standard open differential by improving traction, cornering stability, and power delivery, making it suitable for fast road and track use. This LSD features a helical gear design with a 5:1 torque bias ratio, providing smooth engagement without clutch plates and requiring no maintenance.

Manufactured from high-strength 8620 alloy steel, the Blackline HLF061/111 is built for durability and long service life. It serves as a direct replacement for the factory open differential, reducing inside wheel spin and improving acceleration grip, especially when exiting corners or in low-grip conditions. Installation may require replacing gaskets, seals, and two differential bearings if the originals cannot be reused.