You would probably have to have a 2 inch lift designed specifically for 40 inch tires. It might only lift it 2 inches but it probably has to push that axle forward quite a bit more than a normal 2 inch lift. But I would definitely love a package for a 2in lift and fenders that would fit 40s.I want these fenders so bad! TFL confirmed with mark Allen that they allow 40's with only a 2" lift! that's incredible!