This 4pcs aluminum servo horn set is an aftermarket replacement for the Traxxas TRX4 Trail Crawler platform, designed to boost steering durability and give more tuning options on trail rigs.
The arms are machined from 6061 T6 aluminum with a straight-arm profile to cut flex versus stock plastic horns, and every horn includes dual-position tie rod holes so you can make small geometry changes to steering throw and centring. Fit this set to tighten steering response and fine-tune tie rod length without altering other steering components.
Installation is straightforward for users familiar with TRX4 service: remove the stock horn from the servo output spline, align the aluminum horn to the same spline position, and secure using the supplied stainless steel screws. Verify spline alignment and steering centring before final tightening to avoid binding.
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