TRF421X Compatible Gear Differential 51767 - Tamiya  [51767]

Gear differential assembly for TRF421X

The gear differential unit set is designed as a replacement internal differential for TRF421X 1/10 touring car chassis. Its gear-type construction controls torque split to support consistent handling under load.

Use this unit when routine wear affects drivetrain smoothness or when a different differential behaviour is needed as part of setup changes. Fitting requires basic centre gearbox disassembly and careful setting of gear mesh and bearing seating to retain smooth operation.

When installing, inspect bearings and gear contacts for wear and ensure gearbox torque screws are set correctly to avoid excess preload. Adopt normal RC workshop procedures and the right tools to secure the unit properly.

Provided as a direct spare for TRF421X 1/10 touring cars, this differential unit helps restore drivetrain function or offer a different differential feel when tuning for track conditions.