So the Diesel vs gas debate is hot no matter where you go in the truck world. 15-16mpg in a full size truck unloaded isn't bad for gas. Not at all, and probably not worth the premium price and repair cost for an extra 5-7mpg diesel counterpart (talking Dodge 6.4 vs CTD here at least). My best friend has an '03 CTD, and gets 21-22mpg tuned with a built trans and exhaust/FASS, etc. Problem with modern diesels, they don't typically get good MPG until you do thousands of dollars in mods and void your warranty. You can buy A LOT of gas for the 3-5k it costs to fully delete and tune a diesel pickup. And then you have no warranty on your 60k truck. For the cost of a common rail injector set, I can buy a new 8.1 for my Sub from GM.
Starting from scratch, I'd get a new F150 4x4 with the 2.7l ecoboost.
Add a rear locker, better shocks and stiffer springs and be done with the mods.
R
For those with the Power Wagon did it give you any pause to having the gas engine and the rather poor MPG vs. an HD truck with a diesel modified to similar PW specs. As much as I crave a PW the gas mileage makes me wonder if you could build up a quality diesel version. I've not run the number to determine the return on investment or if you could even get some of the PW stuff on a diesel without starting from scratch. I'm intrigued to see how the Nissan does with their 1/2 ton diesel.
In the end I think the main decision point is what is mentioned above is what towing and payload capacity you need. If a 1/2 ton fits then that would be the most economical. If money is no limit, then my vote is the Power Wagon (with AEV package).
I have not had that problem except at pretty high speeds. I recently added a set of Boogie Bumps to the front of my 3G plus Thuren Fox 2.0 shocks and the truck is good for 60mph-plus through plowed fields, as long as you are belted in.My PW tends hit the front bump stops relatively easily when hitting undulations at speeds between 15 and 20 mph or speeds over 40 mph.
I have not had that problem except at pretty high speeds. I recently added a set of Boogie Bumps to the front of my 3G plus Thuren Fox 2.0 shocks and the truck is good for 60mph-plus through plowed fields, as long as you are belted in.
I've had my Power Wagon (2012 ST) for just shy of 3 years now. I bought it brand new in January 2013. I have over 50k miles on it now. It does VERY well offroad!!! (especially now with a mixture of Carli and Thuren parts for about 1.5" lift and some 37x12.50R17 Nitto trail grapplers on the stock wheels) Overall I have been quite pleased with it.I drive it everyday!
Before I bought it, I looked at a 2012 Cummins but, honestly, I wouldn't buy a new diesel with all the finicky emissions stuff they have on them now, they seem very failure prone unless you are constantly towing things on the highway. Everything I've read points to them not fairing well as daily drivers.
If I could, I would go back in time and buy a 2007 Duramax Classic crew cab (not an extended cab like the one I had (07 is best year, IMO all the power, no emissions garbage, AND 6 speed Allison!)), then I would do a coilover/link solid axle swap up front with about 4" lift and pushing the front axle forward about 2" and 37" Nitto Trail Grapplers. That setup would be perfect!!! (an average between the stock Duramax I had and the Power Wagon I have!)
But, since I can't go back in time, I am sticking with my Power Wagon!!!!