This machined aluminum swing shaft is a direct replacement option for Kyosho Mini-Z AWD drivetrains, created to swap in for softer steel or plastic shafts. It functions as the rotating link inside the AWD layout, transmitting torque between differential outputs while helping keep alignment under load.
Installation notes: you will need to partially disassemble the MR-03 AWD gearbox area to reach the existing shaft. Remove retaining parts and inspect any bushings or bearings before fitting the new shaft. Check orientation and smooth rotation after installation, and confirm clearances with the spur and pinion to prevent binding.
Tuning role: upgrading to an aluminum swing shaft reduces component flex versus softer materials and provides a consistent baseline for setting gear mesh, suspension trim, or drivetrain preload. This is a component-level change focused on drivability and serviceability rather than increasing motor power.
Compatibility: Kyosho Mini-Z AWD series, including MR-03 AWD chassis models as listed by the part designation.
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