Blackline FOR VW Golf MK3 MK4 GTI Beetle Jetta Vento 02J LSD Limited Slip Diff
Blackline VW 02J Transmission (bolt in flanges) Helical LSD. The helical gearing manages the distribution of friction within the LSD. When torque is applied to the helical gear system it creates force that pushes the gear into the differential body, thus creating friction.