Thanks for the article although the statement "Later BTR are technically spec'ed to last 40,000-80,000 miles without a fluid change" could be somewhat at odds with the handbook! (which recommends changing at 5,000 and never more than 10,000 miles)
I assume "later BTR" would include 2003 - ?
I also found this post so am now even more confused!
http://www.talkmorgan.com/ubbthreads.php/topics/58846/What_oil_for_8_LSD_back_axle
