14-04-2014, 02:34 PM
Yeah ebay, pretty sure the thread size is M20x something. Just make sure its clean, i had to do up the bolt on the sandwhich plate tighter than i thought i would have to seal it, you need a big socket for that (well its not big, just bigger than my halfords set had) so make sure you have one handy.
Doesnt even own a 306.