does any one have any idea what this diff may have originally came off.

its fitted in an m3 rally car built by harry hockly and we're trying to find its origins (if any). theres no numbers or markings visible, and hockly just says its a motorsport diff.

apologize for the crap pics but its the best i could get at the time.

 

umm no idea looks a nice bit of kit though

 

You'll have to scan to the bottom of the page but it does look a bit like an x-trac unit , i have one on the shelf but its slightly different to that one .

http://www.xtrac.com/Product%20Specifications.htm

 

cheers tony, i'll have a look.. anyone one else have any ideas