Electronics questions

[baker3]

Ok guys, I have another question...I converted the drive servos to run without the internal ESC. Here is my question, will I be able to reverse the polarity of them with the radio or how will I do it? Right now they both spin the same direction but obviously when I mount them they will be facing opposite directions therefor spinning opposite directions. Im lost and want to know if Ineed to do some re wiring before I glue the motors in place.