What bits do I need?
 

I have got to change the Reluctor Rings on my car before the MOT in a few weeks. I am going to renew the split pins but I don't know what size pins I need.
Can anyone tell me? Is there anything else I need?

Which split pins do you need to know the sizes of.

The one underneath the ball joint around the outer cv area iirc.

You could just use a nyloc nut and bin the split pin, if you want to split pin it 3/32" should do the job.

you should change the hub nuts too...they are not too pricey

Look on Ebay as last year I picked up the whole CV joint with ring fitted for a silly price!! At the same time a got the rear hub with ring and bearing for a supprisingly low amount. I think I paid just over £20 last year for the hub and about the same for the CV joint kit with ring boot and nut !!

http://www.ebay.co.uk/itm/ROVER-MGZS...-/140530056524

I got these early last year for my Blue ZS, seem fine

That's the ones ;)

Thanks guys, i have the rings already so may try them. If that, for some reason fails (like I split the rubber boot or something) how easy is it to replace the whole joint?

Easy if the joint wants to play ball, had to angle grind one Of mine off last year! Not fun!