Alright I have a 97 Grand Prix Gt and 2 weeks ago my decide to stop working. my transmission will go cycle throught all the gears but it won't go anywhere like it will go to like 25mph but after it goes that fast it cuts out and stops going and then all then all the car does then is revs. Also at 15mph the rpms is at 3000 in which i thought it is not good when going that slow and the rpm is that high. I'm either thinking about selling it for parts or just get the transmission rebuild for $990 which i dont have the money for it right now so ill have to save for a which now or get a used one from a junk yard from a another grand prix. What do you guys think happened to my transmission? what should I do guys?