Designed for TRAXXAS TRX4 Trail Crawler chassis, this upgrade is sold as TRX4025TC from GPM. The horn is CNC machined from 7075 aluminum with a straight-arm form to cut deflection relative to the stock plastic arm, and the 25T cut matches typical crawler servo splines.
As a steering replacement, it lets you fine tune tie-rod geometry with two mounting holes to alter throw and leverage during setup. This component is for hobby RC models only and not for road vehicle use.
Installation is straightforward: remove the original plastic horn, confirm spline count and direction, seat the aluminum arm on the servo spline, and fasten with the supplied screws. Inspect steering travel and clearances, then retorque fasteners after a short break-in run.
1. Made of aluminum 7075, compare to the plastic made material, it is more durable and stronger with straight arm design.,2. Dual holes design for tie rods adjustment.
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