Driveshafts - dimensions and where to buy

My advice would be go to Renault parts direct, Renault do an exchange driveshaft you know it will be the correct one onlinecarparts.co.uk is a German company autodoc it not right that they make that clear but they are cheap for most parts and if you get the wrong one it will be a nightmare to sort and I have said many many times if you don't know the part number do not order anything by description for any Renault sport cars most of the time you will get the wrong part. Also consider a Renault dealership or specialist for the job they might have the inside track to a cheaper repair the dealership will be more convenient to return the old drive shaft as part of the exchange process.