i got two nemesis diffs on ebay for 29 a pop
when i was first shopping around i saw one go for 6 dollars....
but there aren't many listed on there...here ill link you to my auction
http://cgi.ebay.com/ws/eBayISAPI.dll...0666&rd=1&rd=1
email them and ask if they have any more....
alsoif u have the green spacers these fill fit in nicely....(as they did in my car)
but you will also need the screws that hold the diffs in place... on the left and right side (download the nemesis manual to see)
as the ones that screw into the plastic gst diff casing don't work..
if you have any more questions let me know