Tamiya 42185 TRF417 Gear Differential Unit - Race Tuner  [42185]

Fine Adjustment for Race Setups

The Tamiya 42185 - TRF417 Gear Differential Unit swaps in as a gear-type diff that accepts various silicon oil weights to modify how the car behaves in turns. It is intended for drivers who want to precisely tune lock characteristics.

Fitting and Compatibility

Compatible with TRF416, TRF416WE, TRF416X and TRF417 chassis, this unit is manufactured to resist wear and extend service intervals when maintained correctly. Ensure correct alignment during fitment to avoid premature wear.

Setup and Oils

Altering the silicon oil inside changes the coupling effect between drive wheels, which impacts traction and steering response. For an effective starting point, consider Tamiya Item 53455 Silicon Damper Oil Hard Set (1000) when setting up the diff.