My ls transmission is leaking pretty bad while driving. It seems to be coming from the back of the transmission, but I don't have the means to tell exactly where it is coming from. I am also experiencing lurching when I have the accelerator pedal at a constant level at low speeds. I am also hearing a moaning when I let off the gas at higher speeds and maybe even a little resistance, but it it hard to tell. Does anyone know what is going on?