I have a black plastic seperator that was found laying at the bottom of the passenger's side of the radiator core support. BTW, the car is an '87 GN. We replaced the radiator and it looks to be some sort of clip-on seperator for the tranny cooler lines. It has 2 cavaties that are the diameter of the tranny cooler lines and a larger diameter opening opposite from them. Any ideas what it is and where it goes? Thanks...