The GPM brass outer portal drive housing fitted to the Traxxas TRX4 Trail Crawler gives each wheel about a 50 gram increase, helping tyres maintain contact over uneven surfaces. Suitable for installation at either axle, the extra mass aids in smoother climbs and steadier descents when crawling off-road sections. Tailor your setup by fitting to front, rear, or both axles depending on terrain and handling needs.
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