I'm changing out my radiator and I'm down to the final stretch, but I can't seem to get the transmission lines back into the radiator!!! I've tried and I've tried and I don't know what seems to be the deal any help or suggestions would be greatly appreciated. I'm not using OEM radiator but I am using a very reputable one that is supposed to be identical to OEM. It's from Sims....I don't know if that is just a regional place or what. I need help please!!!!