For drivers wanting cleaner throttle response, the Tamiya 54897 Ball Differential Set II OP-1897 replaces standard bevel gears to give more consistent power to the driven wheels. That consistency helps when powering out of corners on loose or hardpack surfaces.
This ball differential is suitable for several Tamiya models, for example the Buggy Champ (2009), Sand Scorcher (2010), and Fighting Buggy (2014). Contents include a 1150 ball bearing, eight 3mm differential balls, plus 4mm and 5mm screws so you have everything required for the basic swap.
The design allows on-car adjustment so you can tune differential action between runs. That keeps downtime low and lets you experiment with settings trackside.
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