Is there a freeze plug behind motor mount on a 5.7 hemi?

Yes, on a 5.7 Hemi engine, there is typically a freeze plug located behind the motor mount. This plug is part of the engine's cooling system and helps prevent coolant from leaking out. If you need to access or replace it, you may have to remove the motor mount for better access. Always consult a service manual for specific procedures and precautions.