MUGEN MRX-5 Replacement Joint Shaft Set (spring steel) by Arrowmax AM-MRX5-H0273  [AM-MRX5-H0273]

Durable spring steel joint pin

The Arrowmax AM-MRX5-H0273 joint shaft is supplied as two precision pieces, manufactured from spring steel to hold form through repeated articulation. It is offered as an aftermarket part for MUGEN MRX-5 universal drive assemblies.

As the rotating pin inside universal joints, the shaft maintains shaft alignment and transfers drive torque between cups. Spring steel gives higher resistance to bending and fatigue than softer alloys, which helps maintain correct clearances during normal running.

Installation involves a direct replacement in the universal assembly; replace any bent or worn shafts with these pieces. Observe the model's retaining layout and seating, then confirm the joint rotates smoothly. Two shafts are supplied per pack to cover both sides of a typical drive set.