Well , just talked to the mechanic , it wasn't anything major in terms of repair , but they did have to pull the tranny.Its also something I don't think I would have ever figured out by myself.It seems the rear seal gasket has rings on it , but the part that holds the gasket down also has that ring on it.The stock gasket doesn't have the rings on it.Soooo , when I tightened it down to spec , there was twice the gap that there should have been.With both parts having the ring , it didn't seal properly.He said everything I did was perfect , no leaks , other than the extra spacing that shouldn't have been there.

Oh well , at least now I know what the problem was.I think I would have drove myself nuts looking for this problem , and most likely would have changed the seal and probably the pan gasket to try and stop the leak.But , after puttingit back together would have ended up with the same problem.So , for the fix , they are putting in a gasket with no rings.They didn't have to pull the tranny all the way out either , just far enough to get in there.