it has had to change to a rebuild of my TC with new gears. I think being the 2004 there are some more electronics on the case.
I was recomended a 1.4 ratio, which is basically the defender one.
My take of the ashcroft calculator is this (please let me know if I have done it wrong) TD5 auto. with 265/75R16
Attachment 131599Attachment 131600
I think this appears to be ok at 110.
The one below is my take of the stock setup. So it is pretty close.
Attachment 131601Attachment 131602
I should have a remap in next week when I get my car back. So it could be a race car :)