Originally Posted by Happywing

That's the servo I use in my ERevo.
You will want the ProLine steering arm:
http://www3.towerhobbies.com/cgi-bin...?&I=LXJVG1&P=7
And the Traxxas HD servo saver spring:
http://www3.towerhobbies.com/cgi-bin...?&I=LXHGE0&P=7