Just a note about the quantity of plates in the front clutch. More is not necessarily better depending on the application. More plates increases the holding power of the unit but can increase the apply time because there is more area that oil has to be squeezed out during application. Generally the six clutch units are for heavy torque units like a diesel truck while the four and five clutch units work best for racing. This is just a generalization and anything can be made to work but using the higher clutch count in a race application may require some adjustments to shift timing.