hi there im new to the site and not sure if this is were i should b asking this question of in this area. but here goes.. I have a N reg 3ltr turbo diesel.. and im in desperateneed of a rear diff. soz i dont have the diff code to hand. can find out tho. i think its G825 or G285.. can anybody help? does any1 have 1 for sale or know where i might find 1? any help or sugestions would b greatly reacieved.. Thanks..