Ox Lockers, Ox Cables, Ox U-Joints at Lower Prices. The OX Locker™ is built to last. From its extra thick differential cover to its unique 4 pin design, you can see and feel the quality of an Ox Locker. The new OX Locker works with a simple push/pull of the activator switch. The Ox Locker takes no electricity, no air, and no hassles! The best part is that the Ox Locker locks and unlocks for your driving needs. Unlock your Ox Locker for highway driving and tight turns off road. Lock your Ox Locker for tough terrain and rockcrawling.