higher roll center and adjustable shock motion ratio

This center cap only fits: JR37

diaphragm-type valve - a type of valve that has a track record of failures

Purple Spring (Outer -10 InHg)

Clutch Kit - Xtreme Performance Heavy Duty Organic 290Nm KMI23533-1A JR18 higher roll center and adjustableXtreme Performance sprung organic kit 1A Recommended for: Street use in vehicles with minor engine modifications. Sprung organic clutch kits offer exceptional driveability for vehicles used daily but also have performance modifications. The sprung organic disc offers improved dampening which reduces the shock loading on the transmission. Specifications: Torque capacity 290Nm Clamp load Increased over standard Organic Friction Discs Heavy Duty Pressure