Well its not a mustang,but its my moms '99 Ford Taurus. On her way to work this morn she said the rpm's started jumping around then the car was losing power.I get out there and the motor runs fine but it feels as if there is no tranny at all. Meaning any gear I put it into it will just rev,but when you move the shifter it feels like there isnt even any resistance or cable there at all. She says that the rpm's jumping around weird like that happened a few times in the last couple months. I have no clue really on front wheel cars,but maybe cv joints or a dead tranny.