hi lads hope u's can help me ere. there is a chettering noise comeing from the back of my type r when i turn it seems to b comeing from the rear diff. ive have the diff looked at 3 times but he cant see a problem. we have rubbbed down the 2 outer shims thinkn that might help, but no good. what is this? ive read it could b a tyre thing? hardly! do i need a diff or is there away to sort it. any help would b gr8 thanks even txt and ill rng 07743550370