Description from Seller

The model 40 is sometimes referred to as the "Mid-Range" torque converter systems since it falls into the middle range between the Comet series. The model 40 is a rugged piece of machinery. The drive clutch is composed of heavy walled stamped steel to withstand the extreme rigors of rough applications. Whenever there is a need, want and use for a torque sensitive drive system device that is infinitely variable from engagement to the highest speeds attainable (within the pitch diameter range), the 40 model system should be considered.