Rear diff on a x3 mav is always locked. Front diff has a locker to select depending on need. Not sure if the defender models are the same or not..What type of rear differential do the new Mavericks/Defenders have, can you lock or unlock it? I realize there are many different models.
Correct - well, correct when you put it in full lock. For how I ride I still like VL better.smart lock gives real posi to the front
viso is never realy locked