Is there anyway of knowing what size diff is in my car without taking it apart? I know its a 3.62 LSD, but not too sure which size it is.

Is this any use to you?

http://forum.fordsierraclub.co.uk/viewtopic.php?t=5843&highlight=diffs

I would think that if you posted a photo from above on here we would be able to tell you - if you can't work it out from the above

Cheers

mark

Just measure across mounting lugs.

If you're 100% sure it's a 3.62 LSD then it's deffinately a 7". The equivalent 7.5" LSD is only found in the 2WD sierra cosworth and 24v scorpio and is actually a 3.64 ratio.

Liam