This JR-THNE05-GU aluminum gear box cover is an aftermarket, RC-scale replacement designed to fit the Tamiya DT02, DT03, DT04 and Hornet EVO chassis named in the title. Finished in gun metal, the shell is a direct-fit external plate that mates to the stock gearbox mounting points and uses the existing fastening holes on the specified Tamiya platforms.
In use, an aluminum cover increases rigidity around the gearbox and provides a tougher surface than many factory plastic covers, helping the chassis resist deformation under load. As a tuning component, it is a structural upgrade that improves local stiffness and protects the gearbox area while keeping internal gears and service access unchanged.
Installation is straightforward for experienced hobbyists: remove the original cover, confirm gear mesh and any seals, locate the JR-THNE05-GU onto the original screw positions, and tighten fasteners carefully to avoid over-torque. After fitting, check alignment and free rotation of the spur and pinion to prevent binding.
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