This alloy gear box is an RC-scale replacement part designed for the HPI Savage Nitro Off Road Series. Constructed from aluminium alloy and finished in purple, the unit replaces the stock gearbox housing to provide a rigid mounting point for spur and pinion alignment and to support drivetrain components during aggressive off-road runs.
Intended role: chassis durability and tuning. Fitting an aluminium wavebox helps maintain consistent gear mesh under load and can simplify setup when adjusting spur gear height or swapping bearings. It is supplied as a single housing unit without additional internal gears or bearings.
Installation notes: basic disassembly of the original plastic housing is required, retain all stock fasteners where possible and verify mesh and backlash after installation. Because this is a direct accessory for RC models, confirm screw lengths and any shims before final assembly to avoid interference with the motor pinion or spur gear.
Use this alloy gear box when you need a stiffer gearbox housing for setup consistency and improved component alignment on HPI Savage models; it suits hobbyists aiming for reliable drivetrain behaviour without changing internal gear ratios.
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