Originally Posted by Tyler16

Hello all

I am trying to get some info for my uncle, He is wanting to buy a superduty, crew cab 4x4. He says he wants to buy a 08-09 6.4l. But I'm not sure, I heard about so many problems with the engines that I am wary. And I think a 6.0l would be a better idea.

I would really like to hear from people who have dealt with these engines and what you would you buy ?