Hi. I am new to this forum. I am glad to be a member. I have a simple question. I bought a Futaba 4PLS T-FHSS 2.4ghz radio transmitter to use with all my rc cars and trucks. If I want to use this transmitter to control my savage xl, do I need to buy both a Futaba servo for the throttle, and the steering to put in my savage xl truck? Thanks. Kelly.