CENTERFORCE clutch systems are designed with the diverse needs of the customer, or end user in mind. Because of these diverse needs, Centerforce? offers a multilevel line to meet the requirements of a wide range of vehicles and their intended uses. To obtain the proper system, it is extremely important to completely qualify and verify the vehicle, not only by its make and model year, but also "define" its intended use. A stock vehicle used for commuting to and from the work place has an entirely different requirement than a "high performance" vehicle driven at the extreme of its capabilities, and sometimes beyond!