Thank you gents fro your replies, at the moment the car dealer has it back and under law he has to fi it or...dare i say give me my money back( which i dont want as the SRT6 in Aust is like rocking horse etc.) In aust they want 15800 for a new diff which is madness. I may well end up buying a diff from the US and getting a wavetrac put in as you guys seem to actually know what you are doing. I have been given a Kia cerato to run around in for now and it goes to redline a lot lol. Nothing like the crossy. there is another in melb (3400 kms away for 25K aust ) but its black, may end up flying ove rand getting that one instead but i really like the SSB. Are new diffs still available in the US?