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

Spring steel universal joint shaft

The Arrowmax AM-MRX5-H0273 joint shaft is an RC-scale replacement supplied as a two-piece set and manufactured from spring steel to keep its shape under repeated motion. It is intended for use with MUGEN MRX-5 universal drive assemblies as a direct aftermarket replacement.

Functionally the shaft acts as the rotating pin inside universal joints, keeping alignment and transferring load between drive cups. Spring steel offers improved resistance to bending and fatigue compared with softer metals, helping the shaft retain tolerances during normal hobby running.

Fitting is a straight swap into the model's universal assembly to replace worn or bent originals. Confirm the model's retainment method and seating before final assembly and check for smooth rotation after installation. The pack contains 2 pcs to replace both sides of a drive set.