First some background info. I own a 2007 Chevy Silverado Classic 2500HD equipped with a Duramax LBZ diesel and 6 speed Allison adaptive transmission. I have to tell you that this power combo is amazing. It is rated at 360hp and 650ft/lbs of torque factory with no mods. I am so sold on this combo that I am limiting my search for a class C MH to only models equipped with this power train. So my question is how can I find out which manufactures are offering GM chassis with the Duramax/Allison power train?