Yup. If you are gonna wheel (or anything else), you'll get better results with a set of manual lockers.
Since there are a lot more TracKicks laying about in the junkyard (I assume that is what you have), you'll find manual hubs that are servicable and will work a lot better.
You may need to get out and lock them up in unpleasant weather or knee-deep mud, but they will ALWAYS work for you in a predictable manner no matter what the driving conditions are as compared to autos.
Plus, if you look carefully on the bill of sale (it's VERY fine print), there is a section that says you agree as a Zuk owner that you will go salvage yard spelunking if necessary to keep your truck running.