TRAXXAS TRX4 TRAIL CRAWLER Aluminum 25T Servo Horn with Built-in Spring by GPM TRX4025TA/3H  [TRX4025TA/3H]

Aluminum 25T Servo Horn for TRX4 Steering

This aluminum 25T servo horn is an RC-scale replacement part designed for TRAXXAS TRX4 platforms, offered by GPM as model TRX4025TA/3H. It combines a machined aluminum horn with a built-in spring to reduce shock transmission to the servo during trail impacts, and three positioning holes to tune tie-rod geometry for different link layouts.

Key practical notes for installation and tuning: the built-in spring increases overall horn thickness compared with stock plastic arms, so when fitted in the original servo location on TRX-4 models you may need to reverse the support tie rod angle to provide clearance. The design does not alter the placement of the front reverse steering gear when installed correctly, but confirm tie-rod alignment before finalising link lengths.

Included hardware from the manufacturer: servo horn, stainless steel round head screws, aluminum collar, and a 3mm metal washer to complete a single arm installation set for steering conversion or upgrade.