Okay, RoyM.......I sure do appreciate the good data. However.....(you knew there would be one, didn't you), right now a duramax is not available to me under the current circumstances and there just isn't one in my market @ my budget. So here's basically (there are a couple o' others, but I don'ty think they would make the cut, either) what's available to me..........The 3500 crew cab 6.0L automatic trans........and a c/k crew cab 2500 7.4L with a man. 5 speed. Now, I am liking the 2500 for the 7.4 but I'm not sure how much I am liking the man. 5 speed. The 2500 does have less miles on it, though.......90k. How do you like that unit, as a versatile "pull most whatever I might want" rig?