This F/R axle shaft is supplied as a direct Arrowmax option part for Mugen MBX models and is intended for RC-scale front and rear driveline use. The designation "7075 HARD" is carried from the part name and indicates the axle shaft's hard-treated 7075 grade specification as provided by the manufacturer.
The part serves as a replacement or upgrade for worn axle shafts on MBX chassis, and is primarily used where precise fit, reduced play, and consistent alignment of the driveline are needed for setup or race-day tuning. Installers should check runout and clearances during assembly and confirm compatibility with existing wheel hexes, differential outputs, and bearings.
Installation notes: remove worn shafts and inspect mating bearings and hexes for wear, apply thread locker where the original design requires it, and verify free rotation before final reassembly. For tuning: changing axle stiffness and fit affects driveline lash and can influence transient traction response; adjust related suspension and gear mesh settings after replacement.
Use this shaft when replacing worn front or rear axle components on Mugen MBX cars or when seeking a direct-fit, hard-treated axle option for driveline maintenance and tuning.
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