Track-tune your rig - Tamiya 53379 3mm Lightweight Differential Ball Set for RC Cars OP-379  [53379]

Get smoother diff action using the Tamiya 53379 3mm balls

The Tamiya 53379 3mm Lightweight Differential Ball Set for RC Cars OP-379 offers a straightforward upgrade to reduce the moving mass inside your differential. By lowering inertia, these balls help the diff to react quicker to throttle changes and steering inputs, which can improve corner exit and on-power stability for hobbyists who like to tune their setups.

Where these balls work best

These lightweight balls are compatible with a broad range of Tamiya ball-type diffs and are useful when you want a livelier, more responsive feel. They are not a universal fix but are a simple part of a wider tuning approach that includes diff oil selection and gear condition.

Fitting guide for hobbyists

Installation is quick for anyone comfortable opening a diff. Replace the factory balls with the 3mm set, check clearances, and reassemble. While you are inside, clean the internal gears and swap grease if needed to get the best results.