Mugen MRX-5 Rear Drive Shaft (Spring steel) by Arrowmax AM-MRX5-H0291  [AM-MRX5-H0291]

Rear drive shaft for MRX-5

This is a replacement rear drive shaft produced for Mugen MRX-5 scale chassis, supplied in a pair for axle rebuilds and maintenance. Manufactured from spring steel, the shafts balance torsional resilience with service life expected in race and practice environments. The pack contains 2 pcs intended to replace worn or bent rear drives, restoring consistent driveline behavior without changing gear ratios.

Installation notes: fit one shaft per side into the existing axle carrier and verify clearance with the diff outdrive and wheel hub, inspect spline engagement and secure any retaining hardware to factory torque settings. The part is intended as a direct-fit spares/hop-up for MRX-5 layouts and does not alter suspension geometry.

Tuning role: using spring steel rear shafts helps maintain straight-line stability under load and provides predictable flex characteristics during corner exit, making them suitable for drivers seeking consistent traction behavior without the stiffness penalty of hardened alloys.

Use these shafts when renewing the MRX-5 rear drivetrain to restore handling consistency; check shaft straightness and spline fit during installation to ensure reliable operation.