navistar in my opinion is pulling at straws. they know that if ford stops buying diesel engines from them, they are gonna be in real deep dog doo.
for is in a signed contract. they did not stop buying engines from navistar, and never claimed they were going to back out of their contract. it is all a bunch of B.S. navistar is pulling to make themselves look good, and ford look bad, and dates back to navistar's failing to make good on their obligations for warranty work regarding the 6.0 engine.

if they would just buck up and work with ford, there would be no problems.