Tamiya 51767 TRF421X Compatible Gear Differential Unit  [51767]

Precision differential for TRF421X

This gear differential unit set serves as the internal differential assembly for TRF421X-based 1/10 touring cars. It employs gear-type components to manage torque distribution and deliver consistent response on track.

The part is suited to maintenance tasks and setup changes: replace the differential when wear affects handling or when adjusting differential behaviour is required. Installation involves removing the centre gearbox and checking gear alignment and bearing placement to preserve smooth operation.

During replacement, examine adjacent bearings and the spur/pinion mesh for wear, and check gearbox torque screw settings to prevent unwanted preload. Use appropriate RC workshop procedures and the correct tools to secure the assembly reliably.

Packed as a direct replacement for TRF421X 1/10 touring cars, this differential unit helps restore drivetrain integrity or offer a different differential feel as part of setup refinement.