Well the problem is that without spacers the MOAB wheels wont clear the brake calipers. Also without spacers you will never get a tire larger then a 265/70 to clear the ball joint bolt while still running stock wheels. Most 265/70's wont even clear the ball joint bolt without spacers. My tires wouldn't have. Also, I realize that a 33 inch tire isnt much bigger (1/2 inch taller over all tire dimensions) but you'd be suprised how much that 1/2 inch makes a huge difference. Especially if the vehicle ever leaves the pavement.