I was right, they are reversed. Here is the response i got when i emailed their car support:
Hello,
Thank you for your recent e-mail. You are correct, the exploded view shows the outdrives incorrectly. They are opposite in position.
I hope this has not caused you great inconvenience.
Thanks for writing!
Sincerely,
Craig
Product Support
Thunderbirdjunkie, i'd also be interested in knowing how your test goes with the gt diff in the evader.