The Big Three's New Diesels put on a Dyno

I've towed 30,000 lb trailers with my old 03 Duramax 2500 and have not had any trouble with the front end. Everything else on that old Duramax has been absolute junk. I doubt overloading it has had much to do with all its problems....No door locks no a/c no pwr windows, battery goes dead, transmission problems,no radio, engine over heats