So i just got a new motor for my car and about a month later witch is now a few days ago i think my transmission when out. But i am not so sure about what happened i was driving the car and then i floored it and it slipped and reved real high i let go and it drove like normal then it started to go in and out like it was slipping really bad and then all of a sudden it would not go into gear. so what i was wondering if i could be the torque converter or the transmission is there i way for me to tell any help is appreciated thanks.