I keep hearing mpg and oversize tires in the same sentence. Yall need to realize gearing is the biggest part of a lift and tires but no one takes the time and $ to do it. Its THE most important part of a lift and tires. Stock axles are designed to just get by with stock tires let alone 35" tires. There are guys running tahoes and yukons like mine getting 18 mpg with 35" tires and have way more power too. It's all in the gearing
The crazy thing is a set of front and rear gears will run you 500 ish. Way less than a set or good tires and will pay for themselves in fuel the first year. Most stockers are a 3.42 or 3.73..look at going to a 4.10 or even 4.56 and it will be like a completely different vehicle.
X2