Once you get lifted and on some nice tires, get a locker if you seriously want to take a 2wd on the trail. 4x4 will always be better than 4x2, especially in the snow, but you will be amazed at how much more capable your truck will do with a locker. We also own a jeep jk and in the summer months we prefer to take the trac on the trail for multiple day trips because the lockers do such an awesome job. I say anyone seriously wanting to off road a 2wd should have lockers, but start on the lift and tires first. Again, good luck!