For TRAXXAS TRX-4 25T Aluminum Servo Horn with Built-in Spring - TRX4025TA/3H by GPM  [TRX4025TA/3H]

25T Aluminum Servo Arm for TRX4 Steering Upgrades

This aluminum 25T servo horn is an RC-scale replacement made for TRAXXAS TRX4 platforms, identified as model TRX4025TA/3H. It pairs a machined aluminum arm with a built-in spring to absorb trail impacts and offers three mounting holes so you can fine tune tie-rod geometry for different link layouts.

Practical installation notes: the internal spring increases the horn profile compared with standard plastic arms, so when installed in the stock TRX-4 servo position you may need to reverse the support tie rod angle to clear the thicker arm. The design preserves the front reverse steering gear location when fitted correctly, but always check tie-rod alignment before finalising link lengths.

Supplied hardware from the manufacturer includes the 25T servo horn, stainless steel round head screws, an aluminium collar, and a 3mm metal washer to complete a single-arm steering conversion or upgrade.