RAM Clutches 978 Powergrip Clutch Disc is a member of the RAM Clutches Powergrip 900/300 Series and feature a blend Organic Series metallic friction materials that retains all the good engagement characteristics of Performance found in a fully organic disc yet provides a substantial increase in Torque capacity. Urethane encapsulated springs arranged in an eight spring hub are more effective in absorbing high shock loads. It is recommended to use this Powergrip Disc for vehicles that require higher horsepower or higher torque load where good drivability is an absolute requirement. RAM Clutches are the Champions Choice.