I think this article sums it up pretty well, from the perspective of those that were there!
From The Archives: Who Really Won Le Mans Yes there was a stolen lap, which all came down to a lot of FoMoCo crap! It was stolen from pore Ken. I like Carrol Smith, Shelby team managers, advice to Ken, ‘I don’t know what they told you, but you won’t be fired for winning Le Mans.’ I kind of feel sorry for Dan Gurney, he followed the orders to the letter, knowing it would mean he had no chance of winning, just an overheated Ford engine!