Hmmmmmmm, have you got the highest spec clutch?

You need the pedal itself, and 58mm WHITE quadrant, NOT the 55mm black one (the AP website is wrong) and its worth getting the 2 plastic bushes that fit into the pedal just for good practice.

heres the page that describes the rest. It should fit straight on

http://www.apracing.com/roadcar/clutch/epmods.htm