Mugen MBX Hardened F/R Axle Shaft for Tuning - Arrowmax AM-MBX-E0221  [AM-MBX-E0221]

Hardened F/R Axle Option for MBX

This front and rear axle shaft is supplied by Arrowmax as an upgrade option for Mugen MBX models and is suitable for RC-scale driveline use. The marking "7075 HARD" reflects the hard-treated 7075 grade finish specified by the manufacturer.

Use the part as a replacement for worn shafts or where a tighter fit and reduced driveline play are required for setup and on-track tuning. Installers should confirm alignment and check for runout to ensure compatibility with wheel hexes, differential outputs, and bearing bores.

Installation tips: remove worn shafts, inspect all mating parts for damage, use thread locker on fasteners where the original assembly used it, and verify free rotation before completing the job. When adjusting tuning, note that changes in axle stiffness can alter driveline lash and vehicle transient response.

Ideal for MBX owners replacing front or rear axles who want a direct-fit, hard-treated 7075 option for routine maintenance and setup refinement.