So I'm considering a Chevy 3500 at the moment with landscape body.....that dumps. What is up in the air is will I keep my '02 2500HD thats worth, I guess, $12,000. I'm leaning towards gas engine (6.0L) due to the diesel being a $7,300 option and that it would take around 80,000 miles to pay for it in fuel mileage savings. Anybody plowing with a 3500 that is 2WD? I want 4WD but thought I'd throw that thought out there. Dually + weight seems to be okay.......remember, I'm in northern VA, not North Dakota. What fuel mileage are those of you with 3500's seeing in the 6.0L and the DMAX? I'm assuming around 9mpg gas and 14mpg diesel? I'm torn between ext cab and shorter bed (10'?) or regular cab and longer bed (12'?). Not so much for hauling people but place to put a blower etc. I think I can get an '08 gasser 3500 cab and chasis around $23,000ish but then another $6,000ish for dump body and boxes. Which leads me to looking used vs new. A 4500 would be nice but a 4x4 model is hard to come by. Then the 8.1L gas option has power but even worse fuel economy.