A hybrid drive module, comprising an annular diaphragm spring having an inner surface and one or more fingers protruding radially inward from the inner surface and a carrier hub concentric with the diaphragm spring and connected to a rotor of an electric motor and a cover of a torque converter, the carrier hub having an outer surface with one or more retention grooves configured to interlock with the one or more fingers of the diaphragm spring to inhibit axial movement of the diaphragm spring relative to the carrier hub.