@7150285 The division of isuzu motors that makes the Duramax is also co-owned by General Motors Corporation, so with that being said, it is a very GM oriented product (manufactured in Moraine, OH USA!!!). A BAD ASS Product too if I might say, I have an '06 Chevy 2500 HD with the Duramax-6 speed ...
I had to let off in case a car came down the road behind the church,,,,, it'll go alot farther than that