This aftermarket input shaft is manufactured for TRAXXAS X-MAXX transmissions and is supplied as 1 pc. Produced from hardened steel #45, the straight-shaft geometry is intended to reduce radial runout and improve gearbox coupling under sustained high torque.
Intended role: the shaft replaces the OEM input to improve engagement accuracy and extend service life where upgraded motors or heavier duty operation increase stress on the stock component.
Compatibility notes provided by the source: for 6S the shaft serves as a direct replacement for Traxxas part no. 7786. For 8S applications the shaft must be paired with these GPM Racing components to function within the no-slip 8S system: TXM355315T, TXM355316T, TXM355317T, TXM355318T, TXM355416T, TXM355418T, TXM355515T, TXM355517T.
Installation and tuning role: inspect bore concentricity and gear alignment during install, then validate gear mesh under low-power bench testing before full-power runs. Use this shaft as part of drivetrain reinforcement and tuning for high-performance RC powertrains.