Alfa Romeo 75 / GTA / Spider - LSD discs – Street pack (Stg 1)

Alfa Romeo 75 / GTA / Spider - LSD discs – Street pack (Stg 1), RacingDiffs part no. RD4001. The kit replaces the friction and steel plates of the factory limited slip differential with RacingDiffs plates made from heat-treated tool steel with a molybdenum-ceramic coating.

Key Features

• Perforated clutch plates: The friction plates are perforated for improved cooling and oil flow, helping resist oil build-up between dog ear plates and maintain consistent performance under load.
• High preload setup: The preload shims provide approximately 100–110 Nm of initial torque , eliminating free play inside the differential and extending clutch life.
• Adjustable performance option: The Stage 2 Track Pack includes a multi-variation ramp set for tuning differential locking characteristics to suit your driving style.

Fitment

• Alfa Romeo 75 (1985–1992)
• Alfa Romeo 2000cc (1979–1982)
• Alfa Romeo GTA (1968–1975)
• Alfa Romeo Spyder (1966–1993)

Specifications