What are the specs of the 22" wheels that you are looking at (width, offset/backspacing, etc.)? Even with a 2" leveling kit, you will have to stick with something around 33" for your tires. For a 22" wheel, that would be a 275/50/22 tire. Not my preference for how an off road vehicle should look, but to each his own. I just put 18x8.5 wheels with a 0 offset and 295/65/18 tires on mine with a 2" leveling lift. Those tires are about 33.2" and I get a little rubbing at full turn on the rear side of the wheel well. If you are looking for a tire that looks a little aggressive for your Pro 4x, you might have a hard time finding any for a 22" wheel.