There are two small white rubber bands that mount over the servo motor on the tow balls. The servo motor's wire connects to the blue terminal, and the two Power Functions switches connect to the red terminal, Each L motor's wire connects to the Power Functions switch on the side ex.( right motor with right Power Functions switch). The directional switch for both of the Power Functions switches should be oriented facing the back of the vehicle.
There are 75 treads used per side.
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