I wanted to use a pushrod but i dont know if i can get the pushrod to the engine with out bending it in a few places. The tube is not kinked, the end of the cable is not the smoothest but its not mangled. It was going infine until a certain point. If i can use a pushrod i will. I still want to know if the servo is suppose to push the cable thru the tube or does it push the cable and the tube. Reason im asking is because theres no way a servo is gonna be strong enough to do this.