This aluminum rear gear box is a replacement hop-up designed for TAMIYA Hotshot series models. Fabricated in red anodized aluminum, it replaces the stock plastic housing to reduce flex and provide a firmer mounting point for the rear drivetrain components. The part suits hobbyists who want a durable, dimensionally stable rear end without altering internal gear ratios.
Installation follows the stock pattern of fasteners and locating points so it can be used with the original spur and pinion arrangement. Check for required clearances if you run low-profile suspension setups or aftermarket motor mounts, and confirm alignment of the output shafts before final torqueing. No additional cutting or trimming should be necessary when used with the listed compatible chassis.
From a tuning standpoint this housing helps keep rear geometry consistent under load, which can reduce drivetrain lash and result in crisper throttle reaction during hard cornering or landings. It is an RC-scale hop-up intended only for model vehicles and not for any real-world application.
Choose this aluminum rear gear box when you need a stiffer, longer-lasting rear housing that preserves stock fitment and supports tuning aimed at improved drivetrain consistency.
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