This center cap only fits: JR37

If Ackermann is positive

Recommended alignment parameters:Toe in/out: If Ackermann is 0 or negative then toe is 2mm out

now with the kind of control never seen before

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

Clutch Kit - Xtreme Performance Heavy Duty Organic 290Nm KMI23533-1A JR18 This center cap only fits:Xtreme 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