Upgrading the Servo in a Traxxas TRX-4
The Traxxas TRX-4 is a great vehicle out of the box, but there is always room for improvement. The most effective upgrade that you can do over stock is upgrading the steering servo to a more burly unit. Here, I’ll show you how. The Hitec HS-5646WP has proven itself time and time again in my scalers since I started using them in [...]