ok I got a 96 explorer aod and it is leaking trans fluid. It is leaking out of were the trans cooler feeds into and exits the radatior. now I just replaced this rad today, before the new one it was not leaking. so my question is, are there o rings or something that went on those connections, b.c I dont remember seeing any, or did I get a bad rad and need to go back to autozone and shove it up thier ass.

Thanks