Isuzu is an American company and only recently has the Allison Tranny become a 3rd party. That really isn't a valid rip on the Dmax and obviously GM was wise enough to recognize the potential of this machine.

Oh and my fathers company made the components for the Duramax, so I am defenitely not going to say they are foreign

 

The point I am making is that GM,Ford and all of the auto companies get parts,advice,design help and so on from many sources. No one company produces an All-American made product.
Parts come from Mexico,Canada,Japan,Korea and undoubtedly before long from China.
Not one company stands alone , all get parts from suppliers, some of these suppliers may produce parts for more than one company.

Just don't get too excited about any one product.

 

That is the sad part in it all, but it is coming back to America. Corporations are realizing that although foreign companys have a large workforce, they lack the skills needed to make a good quality product. Our tool and die shop is actually exporting tools to China now because they have tried and failed miserably