Slipper clutches and non-slipper clutches use different pressure plates.
  If you look at the other side of the pressure plate, you'll see that the standard (non-slipper) plate is notched, but a slipper plate is not. 
 This is standard clutch plate:  
  this is a slipper clutch plate:  

     
  Last edited by antonye : 15-Oct-2012 at 14:23.