a synchronization cross - feed system for a thrust reverser having at least first and second sides . each side of the thrust reverser has a thrust reverser actuation system having a plurality of actuators . the actuators in each thrust reverser actuation system are synchronized by a synchronization system . a synchronization cross - feed system couples the synchronization systems of the thrust reverser actuation system of the first and second sides of the thrust reverser allowing an anti - deployment mechanisms of each thrust reverser actuation system to serve as one or more of the redundant anti - deployment mechanism for other the thrust reverser actuation system .