mega cab
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If you plan on driving this a lot (Daily) I would go with 35" tires and 5" lift. That's what I have. Buddy has 6.7 with 7" and 37" and has a heck of a time pulling, and keeping the 37" balanced at all. I would be sure to rotate tires 5,000 miles with aggressive mud terrain tires to keep front from paddling too bad, 7,000 for All terrain. 5.9L is a better motor (Personal preference), but with 7" lift and 37" tires with a 373 rear vs. 410 you will probably have issues with highway towing if it has 373. Mine has 5.9L and 35" with 373 rear and pull nicely on highway to deer lease with a 14' and a few 4 wheelers or 21' boat. Haven't towed anything too heavy for long distances, but I have intake, bully dog, and exhaust.