I think I caused this, not sure. I just got the car, I wanted to see if the brakes were dragging. I went down rt 84 mountain, maintained 70 mph after putting it in neutral, slowed to around 50 and put it back in drive. When I got home 5 miles later, the fluid was pouring out. Looks to be between engine and trans, I am assuming the seal?? I have been putting stop leak in, if I go a couple miles and back, not a drip. If I go 10 miles, then it starts to pour out. What are the steps to replace the seal? I am assuming it's a big job, please help, thank you.