Hi,
I've databased all the Ford Diff Ratios I can find. Most of the info came directly from Ford and Microfiche at the local dealership. So, it should be good.

I tried pasting it here, but tables aren't supported

There are even more (Later models, Granada and Escort cosworth etc) at
http://www.super7thheaven.co.uk/Sier...r_Differential

I've put all the service manuals on there too.

Hope that helps