Mini-Z MR-03 AWD Precision Main Shaft AWD-01 by 3Racing  [AWD-01]

Precision aluminium main shaft for MR-03 AWD platforms

This aluminium main shaft is supplied as model AWD-01 and serves as the rotating connection between motor output and the differential on Mini-Z MR-03 AWD-style chassis. It is intended to fit into the vehicle's existing bearing locations and drivetrain assemblies without altering journal interfaces.

Installation checklist: confirm chassis layout compatibility with Mini-Z MR-03 AWD, verify bearing bores and axial runout, remove the original shaft, clean bearing surfaces and housings, apply a light PTFE-compatible lubricant at metal-to-bearing contacts, and ensure unobstructed rotation before final assembly. Avoid forcing components; address any play or interference by checking gear mesh and alignment.

Performance note: an aluminium main shaft increases torsional stiffness relative to common polymer shafts, which reduces drivetrain deflection under load but can relocate stresses to adjacent bearings and gears. After fitting, monitor bearing condition and transmission components and service as required. Use this part for maintenance replacement or targeted handling upgrades at club and competitive levels.