So i have a 2001 grand prix gt with a new tranny that has rouphly 1500 miles on it but the car has 70142 miles on it i always do burnouts around corners well today i had some people with me and brian knocked it down into 2nd gear at 70 mile an hour but like i put it back in drive. Well soon after i was taking them home and we came to a corner that had like sand particles on it so i floored it and they broke loose then all of a sudden. The tires gripped and shot me the way the tires were turned but it didnt want to move forward at all. so i let off gas and rolled forward and then pressed on gas it was fine. I stopped about 2 blocks away from there house and tried it again it did the same thing. so i dropped them off went about 2 miles out of town on a dirt road. i pulled the e-brake and spun the tires i noticed at 4000 rpm's it would shift and then bog down like i was trying to pull a friggin tractor. i did it like 4 more times just to make sure it was 4000 and then turned around and went back towards my house this time i stopped on the highway and floored it it shifted at 4000 and i kept the gas down at like 10mph it was shaking and didnt want to move i got it up to 40 mph and let off it was terrible. At 40 mph it was at 4000 rpm's. but acted as if i was pulling a tractor. I have no clue whats wrong it drives fine when i floor it and drive it shifts at 5900 rpm's so it has to do something with the spinning of tires or jumping rpm's too quick or something. cause on the dirtroad i could go about 34 mph and floor it and they would spin but it would continue up into second gear so its only at 4000 rpm's. it's very annoying most of my fun is now gone im going to go try it again and will come back and post maybe its like a bad luck deal idk.