when you go to a class above regular one ton pickups, there are a lot of downsides also. we have a couple of 550 psd's and a 4 door gmc 6500, so ive seen the results. they have heavier springs[ translates to a rough ride, even with air suspension], bigger brakes[no problem there], usually geared very low [big problem, they have no top end at all]. but the biggest problem is the bulk of these trucks when trying to do simple things such as going through a drive in window at the bank or a fast food place, forget it. the other problem is that in order to get a pickup type bed, you have to order and have installed a aftermarket bed. theres another 3000 to 4000 dollars. nope, our 2001. 5 3500's have everything that someone hauling a reasonable amount of weight will ever need. thats my experience.
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