LSD clutch pack for Porsche 911 1972 - 1986

RacingDiffs Performance LSD clutch plates fits OEM Porsche (ZF) LSD unit without any modifications: Porsche 911 Carrera 72-86 968 There are 2 different variations of this set: 1. Service pack 2. Performance upgrade set: Multi-variant ramp set Four clutch pack Clutches are perforated for better cooling and great viscosity to resist the oil build-up in the holes between dog ear plates. It is well known that drilled brake discs improve cooling over solid discs! It is the same with the LSD clutch discs. RacingDiffs Recommends Motul Gear Competition 75w140 oil for all products.