TRAXXAS TRX4 Trail Crawler Aluminum Lower Gear Box Mount by GPM TRX4038B  [TRX4038B]

Lower gear box mount for TRX4

This aluminum lower gear box mount is designed as an RC-scale replacement and hop-up part for the TRAXXAS TRX4 Trail Crawler platform, intended to protect the central transmission area and support surrounding components. The component serves as a structural brace that helps control movement of the gearbox and adjacent chassis elements during trail and crawling use.

The mount’s role is primarily protective and stabilising: by providing a rigid lower attachment point it reduces flex around the center transmission, helps keep suspension link geometry more consistent, and contributes to predictable handling when tuning suspension or loading the vehicle for technical terrain. Material choice and solid mounting points are the main factors affecting durability and fit.

Use this mount where a sturdier lower gearbox support is needed for TRX4 Trail Crawler builds; it provides a simple chassis reinforcement that complements suspension tuning and protects the center transmission and nearby components during technical crawling.