Okay, this is now the second time I have to type this, being as the post didn't work earlier so here I go. I own a 1984 Chevy Silverado 1/2 ton 4 x 4. It has a 10 bolt rear-end with 3.08 gears. It has a 700R4 transmission, and a new 350 motor. It got 10 MPG when I had the original 305 motor in it, and since I put in a new 350 motor I now get 14 MPG, which I am happy with. I just repainted it and when I had it all stripped I put on a 2 inch block lift. It has little whimpy 235/75 tires on it. I am going to put on either BF Goodrich A/T's or BF Goodrich Land Terrains. Which tire do you believe is better? I use this as my daily driver, a lot of highway miles, and a lot of miles on gravel roads. I do a lot of hunting with my truck, and it also puts on a lot of miles on ice, and not only icy roads, but icy lakes, being as I am big into ice fishing. So which tire do you believe would be the best for me? now that I got that out of the way, here comes the big question, what size of tire should I put on my pickup. Keep in mind I have a 2 inch lift, would I could take off if I needed too, and I have little tires on it. I am trying to keep my gas mileage the same, if not better, and I would like to experience the same power, not a loss in power as is usually accustomed to bigger tires. I would rather give up power then gas mileage. The tires I have on now are 235/75s and I was thinking about maybe putting on 30 x 9.5s, or even putting on 31 x 10.5s. Would I experience a big loss in MPG if I went to these tires with my 3.08 gears? or would I be better off going with a smaller tire, and then just losing my 2 inch lift to make the tires fill out better. I am kind of stuck here, I'm only 18 so I don't know much about this. so heres what I am thinking, any one of these combos 2 inch lift-30x9.5s in either A/Ts or Land Terrains 2 inch lift-31x10.5s in either A/Ts or Land Terrains no lift-30X9.5s in either A/Ts or Land Terrains no lift-whatever tire size is just smaller than 30x9.5s in either A/Ts or Land Terrains I also have the stock rims on this truck, which are 15 x 7s. thanks for the help.