Eaton ELocker4 Locking Differential
This highly engineered unit allows for maximum driveline flexibility. Users can switch from a fully-open to 100%-locked axle at the touch of a button. The four (4) pinion gear design provides added strength and capability for more extreme vehicles.
Operation
Users operate the ELocker with the flip of a dash switch. When in the “off” position, the unit operates as a fully-open differential. A new design mechanism activates the electronically-controlled internal differential gear set to the differential case providing 100% instant axle-lock.
The Eaton ELocker4 is an electronic, selectable differential designed for drivers that need traction on-demand. At the flip of a switch, drivers can go from open to 100-percent locked and back again. The 4 pinion gear design provides added strength and capability for more extreme vehicles, and features the fastest engagement (.14 seconds).
Performance
This is the professionals ELocker. The Eaton ELocker is designed for the hi-performance off roader. Also great for a variety of uses including towing, off-road, rock-crawling and high-performance vehicles. Its smooth engagement and validated strength make it an ideal solution to improve traction and maneuverability. Units are available for both front and rear axle installation.
- 100% axle lock at the touch of a button
- Sends all available torque to both wheels upon driver command providing maximum traction to overcome most any challenging terrain.
- Four pinion gear design
- Fastest engagement ever (0.14 seconds)
- Selectable ‘push-button’ operation
- Fits Dana 70 axles
- Available for front and rear axles
- Remains locked in forward and reverse
http://www.eaton.com/Eaton/ProductsServices/Vehicle/markets/performance-aftermarket/Differentials/elocker4/index.htm#tabs-5 | 
