Thanks for the info dude, the Durango circlips are horrendously expensive and this kind of "we've got you by the short and curlies" pricing policy does absolutely nothing positive for the RC hobby.
Also if you want a longer lasting thrust race the Schumacher U1954 Pro Thrust Bearing is, again, exactly the same size (TBH it's also about the same price as the Durango part but is much better quality):
http://www.racing-cars.com/pp/Old_Ca...EVO/U1954.html
I use these with Acer Racing carbide diff balls and roughen up the plates with #400 wet and dry/GT85 (making sure to degrease them properly afterwards!) and my diff runs sweet as
