As I've been stripping and painting the rear sub frame I've been turning the whole thing upside down and the first time I did I found there was a breather hole and all the oil poured out
I understand (although I maybe wrong) that the rear diff is a limited slip diff, if this is the case it'll take very special oil although I could be wrong on this.
but if anyone knows what it is and where I could get some that would be great