Im having an issue regarding the nut from the atf line to the radiator as well. My only problem is that the male connector and or the bolt(thought i believe it to be the male connector as i tested the bolt on my old radiator and it fit well) the male connection is indeed stripped and im struggling to find the correct size for a die kit. So far ive struck out twice on amazon trying to get the correct size. Anyone know the specs of this that might help me out a ton.