Hello dwalker34, welcome to the forums!
We're sorry to hear that you're unable to locate Far Cry 3, which comes with the Far Cry 5 season pass.
Please allow 7 days for the entitlement to be added on your Epic Games library.
Should Far Cry 3 still not be available then, we would recommend you let the Epic Games Support Team know. If you have any other questions, please let us know.