I'm thinkn the root cause of the battle between Ford & IH is EPA driven.
Ford/IH tried 4 times to build a competitive, but Compliant diesel engine for the private consumer market. As the EPA upped the requirement standards, a new design/concept was required because each engine was at it's MAX capability for compliance. To Much, To Soon. Consumer feedback & complaints were just to much. Ford and IH each, has stood their ground on who was to blame for what. GM/Mitsubishi, Chrysler/Cummings went through the same litigation's, but Ford/IH had the sales numbers. (Bigger Battle)
Ford will now try and build it's own Diesel ? I'm not so sure Ford (As Big as they Are) can pull it off. I wunder who will REALLY build it.
That truck with the, Too Big of a Hood, Too Small of a Bumper and 90's Van Headlights is still UGLY