This black aluminium rear gear box is an aftermarket housing designed for the Tamiya Hotshot series listed above, offering a metal alternative to the original plastic rear case for servicing and setup tasks.
The stiffer aluminium shell helps maintain gear mesh under load and reduces deformation that can affect backlash and driveline consistency. Installation is performed by removing the original rear housing and relocating the internal gears and bearings into the new unit while preserving alignment and clearances consistent with the chassis setup.
Choose this aluminium rear gear box when you require a reliable metal housing for repair or tuning work on the specified Tamiya vehicles; it focuses on fit and structural stability rather than modifying gear internals.