

RD4057
Upgrade your Porsche 928 limited slip differential with RacingDiffs performance clutch plates designed to improve traction, cooling and durability.
This kit fits the Porsche 928 4.5L V8 OEM LSD equipped with 27-tooth clutch discs (2.5mm thickness) and installs without any modifications.
This RacingDiffs clutch plate set fits:
*Please confirm differential configuration before ordering.
All components are designed for direct installation into the OEM Porsche LSD carrier.
Clutch plates are perforated to improve oil flow and cooling efficiency, preventing oil build-up between dog ear plates and maintaining consistent friction performance.
This kit installs directly into the factory Porsche 928 LSD without any modifications.
Manufactured from high-quality friction materials designed to withstand heavy load and high temperatures.
For optimal performance we recommend:
Motul Gear Competition 75W140
This oil provides excellent lubrication and stable friction characteristics for clutch-type limited slip differentials.
Replacing worn clutch plates helps restore proper LSD function while improving traction, handling and reliability.
Upgrade your Porsche 928 differential with RacingDiffs performance clutch plates for stronger lock and longer service life.