Hi, one motor is reversed already, like i said, we tried just linking each esc up individualy and both work and power the car, but when there both linked together, only 1 system is running the car. Both LEDs are on on the ESCs, but only one flashes at a time. And yes, he used a Y lead from both ESCs to a single channel on the Rx. He followed a guide from the traxxas community, and according to that, its linked up correctly.