So i was driving my 96 mustang gt vert on the freeway the other day going around 60, when all of a sudden it shut off on me. The stereo was still on but the car was completely off. It did not shake or anything it simply turned off. I tried turning it back on and it would but then would shut off. The car had half a tank of gas. Well i took it home and heard the alternator making weird noises so i had it replaced. I also had the fuel filter switched out just in case.(the gas in the fuel filter was completely dark, not a good sign) Well after both were replaced the car was working fine for about an hour when at a red light it started to shake violently as if it had no gas(it had a quarter tank of gas at that point) and turned off on me. I tried restarting the car and at first it would not restart when all of a sudden it did so i rushed to the nearest gas station and filled it up. Now with a full tank there is no signs of anything wrong with it. Does anyone have a clue to what it might be???Sorry for the long post, but any ideas would be greatly appreciated.