Ok just had the engine rebuilt with a new tranny also, then come to find out i had a leak in my radiator so i bought a new one and installed it today. Now after install of the radiator it doesn't leak from there anymore but it leaks from behind the transmission somewhere, does anyone know what gasket that could be or what not?? It doesn't leak it drains the antifreeze out so no antifreeze gets to my radiator and the car overheats really bad. Any ideas or suggestions?

Easy fix. Follow your hardlines that go from the t-stat housing. They go around the side of the head. On the side they connect to heater hose. One of the connections there is loose. If they dont leak there then check where the hoses go on the firewall behind the head.

alright i will try that first thing tomorrow morning, thanks a lot

same thing happened to me. It was the cheapey clamps that originally came with the car. I replaced those with some screw clamps and all was well.

same here, I just had to tighten them down more.