Like others have said, it depends on what kind of wheeling you are doing. If you are talking about the truck specifically, being a 93, I believe they had open diffs f/r. Even with lift and tires, open diffs only get you so far. Even the ZR2 with the G80 "locker" in the rear could benefit from an upgrade, and had an open front diff. Work a winch in after you get some seat time off-road in my opinion, as it will require some pretty serious mods to get one to fit and work properly.