Hi the clutch on my 2003 vectra c has started to slip a bit and although have been going easy on it last 3 months it must be almost time for me to do change it. Has anyone got any advice on this job, last clutch i did was on an escort mk3 about 15 years ago,would i get away with just the friction plates, or will i need the diaphram as well as they do both at factors. cheers