truck looks great! is that lowered about 2.5" front and about 3.5" rear? that's the look I'm after, including the SS front end. beautiful, simply beautiful!
on a 2 wheel drive, i would think you'll be real close to rubbing 285/70/17, that's roughly 33" tall by 11.50 wide.
a little bit smaller tire would be the 265/70/17 option. they're just under 32" tall and just under 11" wide
if you're concerned with the tires being to wide, look into 255/75/17. they're just over 32" tall and 10" wide.