Its a 2001 v8. The other morning I hop on the freeway to go to work, around 40 mph it reaches a max and just revs topping off at 40. I immediately let off of gas, as its done this one before. Went to apply pressure to gas pedal and same thing tops off at 40, revs. I pull over and put it in park, put it in drive and the car will slowly crawl with it reving. Try to put it in reverse, same thing Rev with small movement. If I put it in park, then immediately shove it into the auto/standard crap it takes off with a rough kick in 2. When shifting to 3rd, it takes about a second and a half to actually shift. I'm pretty positive the easiest choice would to rebuild tranny/ replace entire tranny. Just want a 2nd opinion. I took it to a transmission shop who said that it's definitely nothing electrical and quoted 2500 for entire rebuild of tranny