Originally Posted by Jassman

Im not knocking Your Duramax Dually or any of them in general. They all have their better/weaker points. I also own a 06 GMC Dually with the 350/650 and obvious Allison. I love the powertrain, (and that's all) but what you stated on towing 16,000 lbs behind it is correct, on the GM product. This truck I use for 12k and under applications, and I should say 10k and under, the suspension, while being smoother is no way capable of pulling the 16k (Nortech) like the Ford. Big difference between these 2 models in just this area. Jeff