Originally Posted by
veecee
I run the Smokem spool cups in mine. These let you use the Tamiya DCJ's which are absolutely bulletproof, buttery smooth and are the least expensive DCJ's around (~$35). The Smokem cups are really durable as well (pretty sure they are spring steel). Win-win in my opinion.
I've heard nothing but good things about the Tamiya DCJs. You're saying they wouldn't fit in the stock Xray diff outdrives/cups?