So...... to do this properly and have your cake and eat it too. You need to add either a quality gear driven ( no friction lube) limited slip, or a mechanical or electrical locker possibly pneumatic or cable driven from the driver seat. Then at the same time you're adding this brilliant device, you change the ring and pinions to 4:10 or whatever the ratio calculates out to be. After which you can lift 4" and put the bigger tires on.
that's what gives ATV's & UTV's their great performance - front and rear lockers never found on stock pickups plus a very low gear ratio and wide, low pressure tires. Without those lockers, they'd be stuck all the time.
