Compression Ignition Addict
Join Date: Mar 2013
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There are several things to consider. In terms of range, that will be based on your fuel tank size as well as gas mileage.
If you want a short bed, it's going to be a 26 gallon tank. My range was around 370ish miles stock, and leveled with 35's it's about 320-330 miles. Granted, I fill up when it says 0 miles till empty and can only put in around 23 gallons, so I know I have a few left, just play it safe.
Titan makes a 50 gallon drop in replacement tank to replace the 26 gallon tank. Sounds like it would be worth it to you.
I believe the long beds have a 36 or 38 gallon tank but I'm not 100% sure. That would also be an option, if you wanted a long bed.
With the 8" lift and 37's my guess would be you'd get around 13-14 mpg without the engine mods (tuner/deletes) with the deletes around a 1.5-3 mpg increase depending on your foot and how your truck is. It seems every truck varies. Some people get 16 mpg stock, others get 20mpg. I think more of it has to do with peoples hand calculations (or lackthereof) as well as how they treat the skinny pedal.
As for what you tow in regards to weight, it will be cake for the new 6.7's. I only tow a 15k-16k lb 5th wheel. I only tow it a few times a year, but it certainly handles it. If I did it weekly or even monthly I'd want a dually, however.
Hope this answers a few questions, many members here know more than I do, but I've done a lot of research as well.
FYI, I'd probably even suggest a 6" lift with 37's. Really some people fit 37's on a leveling kit with a little work, and easily on a 4.5" you get too tall and it starts to dwarf the tires. Just my personal preference.
2013 F250 Lariat CCSB - Firestone Ride Rite, Bakflip F1, B&W 5th Wheel Hitch, Carli 2.5" with track bar, Fuel Maverick 20x9, Toyo MT 35x12.5, Bushwhacker Extend-A-Fender, Weathertech Mats, Recon 3rd Brake and Mirror Lights, PTM Mirror Caps
2013 Crossroads Elevation 3912 - Loaded