A rotor assembly includes a torque converter including a housing forming a hydraulic chamber, a rotor for an electric motor, a rotor carrier non-rotatably connected to the rotor that is fixed to the torque converter housing, a rotor carrier flange, a spring, and a snap ring. In some embodiments, the rotor carrier includes a groove and a castellated portion, the snap ring is disposed in the groove, and the spring clamps the rotor carrier flange between the snap ring and the castellated portion.