Xtreme Clutch Conversion kit - TOYOTA 1HD - NISS 24x25.4mm KTY30027-1AXtreme Outback Heavy Duty 4x4 and SUV clutch kits offer improvements in performance and durability for a broad range of vehicles whilst retaining near factory type drivability. The Xtreme Outback Heavy Duty Organic Clutch Kit uses an upgraded pressure plate with increased clamping pressure compared with standard, between 20 40% depending on the demands of the individual vehicle, combined with an organic friction disc. Heavy Duty Organic Clutch Kit