This RC spare gear set is intended for the 1.8x FCD (full counter drift) rear gear arrangement used on Yokomo drift platforms. It replaces the original rear gearing to restore the designed 1.8x ratio and drivetrain behaviour without changing other gearbox geometry.
Fit this gear when teeth are worn, when recovering from gear damage during practice, or when returning a vehicle to the factory 1.8x FCD rear setup. Installation is carried out inside the rear gearbox area and should include standard gear-mesh and runout checks to prevent premature wear.
Tuning advice: keep correct mesh clearance between the motor pinion and spur, check adjacent ball bearings for any play, and verify smooth gear alignment under light load before final assembly. This component is intended only for radio-controlled model use.
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