The Z32 only has one front line to the master and one rear line to the master. Some Nissan masters use 3 lines, (2 front and 1 rear) these 3 line masters can be used on the z32 with the third hle on the master plugged. You could have some kind of plug leaking for the third hole. Other than that, your master is leaking out of something that should be sealed and is bad.