Has anyone had a look yet at the new class 5 series Kenworth. I am test riding one on Monday and am quite excited about this new model. From what I can tell the motor is a cummins and tranny is an alison, it has the engine brake also. What a classy truck this is. As far as I can see the pricing is no more than a chevy 5500 with the duramax motor. I test road the 5500 last week and was not impressed. Lots of power, but everything shook and the brakes squeaked, the dash would vibrate so much I had to hold it with my hand to stop it. I know its not a luxury car I'm buying but those creaks and moans would drive me mad. It had no load in it other than a foot of ice and snow, I was not impressed with the stopping ability. Can't imagine what it will be like hauling 6 tons behind.