![How To: Change TRX4 Micro Servos To EcoPower 640T [VIDEO]](https://www.rccaraction.com/wp-content/uploads/2019/05/How-To-Change-TRX4-Micro-Servos-To-EcoPower-640T-640x300.jpg)
From AMain Hobbies:
The Ecopower 640T is an incredibly powerful sub micro servo option developed to provide a more rugged upgrade for the Traxxas TRX-4. Keep watching to learn how to install them.
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