What is this part called?
1302 / 1303 Beetle IRS Helical LSD 33 to 37 Tooth Conversion Kit
What does this part do on a VW?
This conversion kit allows a Blackline helical limited-slip differential (SKU: 020050020) to be adapted from the earlier 33-tooth configuration to suit 37-tooth applications found in specific IRS Beetle transaxles. It provides the components required to correctly convert the differential for compatibility with later 37-tooth ring gear setups.
Designed for use in performance, motorsport, and high-powered street applications, this conversion kit enables the installation of a modern helical limited-slip differential into compatible Volkswagen IRS gearboxes. A helical LSD improves traction by automatically transferring torque to the wheel with the greatest grip, enhancing acceleration, cornering stability, and overall vehicle control without the maintenance requirements associated with clutch-type differentials.
What are the technical details?
– Conversion kit for Blackline HLF065 helical LSD
– Converts differential from 33-tooth to 37-tooth configuration
– Designed for Volkswagen IRS transaxles
– Precision-machined components
– Allows fitment of 37-tooth ring gear applications
– Suitable for performance and motorsport use
– Manufactured from high-quality materials
– Direct fit for compatible Blackline differentials
– Improves compatibility across multiple gearbox applications
– Ideal for high-performance street and race vehicles
– Sold as a complete conversion kit
Which VW models will this fit?
– Beetle 1302 1971–1972 (IRS transmission applications)
– Beetle 1303 1973–1979 (IRS transmission applications)
– Compatible with Volkswagen IRS gearboxes using a 37-tooth ring gear
Important Fitment Notes
– Designed specifically for Blackline (SKU: 020050020) helical LSD units
– Intended for 37-tooth IRS ring gear applications only
– Professional gearbox assembly recommended
– Differential setup, backlash, and bearing preload must be checked during installation
– Not suitable for swing axle transmissions
– Verify gearbox specification before ordering
What is the SKU for this part?
SKU: 020050021
SKU: 020050021
