I have a '99 F-350 7.3 4x4 and I see a lot of them lifted. I like the idea because with larger tires I can actually get a bit taller gear ratio without touching the gears, I don't like it running at 2500rpm at 75mph I rather have it down towards 2100-2200. Any suggestions on Lift and tire sizes without going to spacers or larger rims than the stock Alcoa's ? Maybe a leveling kit and running 35"s? Thoughts?