1. Bolt the trucks to the deck. Bushings should be facing outwards to the deck. 2. Front of the motor there is a cir clip or c clip which holds the motor shaft in the correct location. When bolting on the motor to your truck. You want to make sure that the C clip does not get damaged when it spins with the motor shaft. 3. Face the motors with the wires facing to the center of the longboard. 4. Double check the wires and make sure they won't get pinched on rotation of the motor when running.