Talked to the guys at IWE today, Excellent conversation with a guy, wish i could remember what his name was. Turns out that they are out there but most of them have been bought up by the salt flat guys ! Ha Ha, so I Guess i'm looking in the right place. Thanks for all the help so far, for those that have suggestions regarding other diff types i am stuck with the 7.5 sort of permanently. You can see why if you check out 67bajabuilder on youtube. Cheers.