I was simply driving down the street about 40 mph with no load and the motor just quit. There was absolutely no warning, no dead pedal, misfire, or hesitation.  There had been no leadups to this that were noticed. The truck had good power and was responsive. We had been on the new ULSD for about a month and there was full winter fuel in effect. Minn has 2% biodiesel for about a year so there was 2% bio in the tank. No problems related to this so far. The mileage had dropped off about 3-4 mpg but I had considered this normal for winter weather. The night was cold at about 25 deg F.  After pulling over to the side of the road I tried to restart. The motor turned over as normal (see later starter replace) but there was no indication of firing.  The truck had about 163k showing and the pump was the original. One lift pump was replaced at 105k. When the VP-44 failed, it was showing 14 psi after the filter.