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3Racing Aluminum Ball Differential System Ver.2 For M05
Base on the original bulkhead design, this ball differential is designed to use 10 x 15 x 4 ball bearing, the highest efficiency ball differential standard in the market. Plus cushion protection, it offers incredible silence and durability. It also has heavy duty version.
I'm still new to the rc world, but I got this diff, it was a nice easy install, very quiet, have run 3 or 4 batteries on it and still going good. Nice smooth acceleration compared to the stock differential. Hope it holds up :)