RustyJC, that is a question I have as well. The torque of that V8 Cummins would seem to overwhelm the entire Nissan drivetrain. I wonder if the Cummins V6 was already under contract to another brand?
As I remember when Dodge first came out with the Cummins back in 89', that they had similar problems with too much torque on the trucks frame. I also remember not to many years ago that Chrysler/Dodge was going to manufacture Diesel Powered trucks for Nissan. Same Dodge body with Nissan name on it. I think it is pretty obvious why Ram is using the VM motor in the 1500, and I understand it is a great engine. As far as Cummins in concerned, It is good business for them to have an outlet for other pickup diesel engines, as long as it is not Ford! :-laf