I'm pretty sure the redesign concerns modifying the actuator fork to use an electric solenoid, instead of the cables that current OX's use.<br><br>I've co-installed OX's in D30's and D44's, and after putting a few months of street and crawling duty on them, think they're the ultimate traction aid. For street driving, towing, etc, they're invisible-completely open. No popping, clanking, clicking, ratcheting, no air lines to leak, no compressor to wire up- nothing. When engaged, it's like the axles are welded together- no slip at all. Axles and U-joints lead an easier life when they're not subjected to "shock" loadings. <br><br>Think about it...when you need a locker, you NEED a LOCKER. When you don't..well, it might as well be an open diff. With the OX's YOU get to decide- and can engage/disengage them whenever you feel like it. Those diff covers/skidplates are damn usefull, too- we drug them over ridges, shoved boulders around, and mowed down a few tree stumps without hardly scratching them. What's not to like?