Clutch Cover Type Description There are functionaly 8 different types in clutch cover. LEVER BOSS TYPE Pressure Plate and Cover are directly clawed and fixed. DIAPHRAGM TAG TYPE Diaphragm type and Pressure Plate and Cover are fixed by Strap Plate. Cover holds Diaphragm Spring. LEVER STRAP TYPE Pressure Plate and Cover are fixed by the strap plate. PULL TYPE Release Bearing is fixed on the edge of Diaphragm Spring and pull the Release Bearing. DIAPHRAGM BOSS TYPE Diaphragm type and Pressure Plate and Cover are fixed directly. TWIN PLATE TYPE Two Discs are used in one cover. DIAPHRAGM STRAP TYPE Diaphragm type and Pressure Plate and Cover are fixed by strap plate. Diaphragm and Cover are fixed by Stud Pins. UNITY TYPE Basically the similar design as DT and, specailly designed to utilize common parts.