Editing Locking differential (section)

===Selectable lockers MRT===
[[File:10.5AAMram.JPG|thumb|Dodge Power Wagons feature front and rear selectable locking differentials]]

Selectable lockers allow the driver to lock and unlock the differential at will from the driver's seat. This can be accomplished in many ways. 
* Compressed air ([[pneumatics]]).  
* [[Automobile_accessory_power#Vacuum|Vacuum]]
* Cable-operated mechanism as is employed on the "Ox Locker".
* Electronic [[solenoid]]s and ([[electromagnet]]ics) like Eaton's "ELocker". However, OEMs are beginning to offer electronic lockers as well.  Nissan Corporation's electric locker can be found as optional equipment on the Frontier (Navara), Xterra, and Titan.  Ford offers an electronic rear locker on the F-series and Ranger trucks, as well as the fullsize Bronco.  Toyota currently offers a rear e-locker on the Tacoma, 4Runner, and Tundra (2022+) (TRD Off-Road and TRD Pro trims only), but has also offered front and rear e-lockers on vehicles such as the Land Cruiser in the past.
** Pros: Allows the differential to perform as an "open" differential for improved drivability and maneuverability, and provides full locking capability when it is desirable or needed.
** Cons: Mechanically complex with more parts to fail.  Some lockers require the vehicle to stop for engagement.  Needs human interaction and forward-thinking regarding upcoming terrain.  Unskilled drivers often put massive stress on driveline components when leaving the differential in locked operation on terrain not requiring a locker.