This 3-gear transmission case is an RC replacement specified for the YZ-2CA family. The listing covers left and right housings that install into the standard 2WD off-road drivetrain while keeping the original gear layout and mounting points.
Fitment is straightforward: the case follows the YZ-2CA gearbox pattern and also supports the B-YZ2CA chassis variant. It is intended as a direct chassis-level replacement to restore drivetrain geometry or to swap out a worn housing during routine upkeep.
When fitting the parts, confirm spur and pinion mesh, ensure shafts seat correctly, and rotate the drivetrain by hand before powering the motor. Proper housing alignment helps maintain consistent gear mesh and predictable power transfer in 2WD off-road setups.
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