You'd have to cut the front fender AND liner. In addition, you'd have to trim away a considerable amount of plastict AND cut the metal body mount to the rear of the wheel.
A lot of work to get an extra inch. When you cut the body mount, you'll have to weld on something to strengthen it back up. If you YouTube search FJ body mount chop, you'll find some people that have done it to our frames on FJ (same frame).