А, разобрался - Eaton ELocker есть самоблок и есть по типу АРБ с принудительным включением. На Хаммер ставят и ту и другую версию, а на первых модификациях ставили только самоблоки, позже ставили и те и др версии локеров в зависимости от заказов. На Н1 ALFA ставили только с принудительным блокированим самим пилотом по типу локеров ARB.
а я добавлю что на военной версии HMMWV стояли 3 версии, в том числе и торсен.
EGerodisc Differential – Automatic Positive Locking Differential
Gerotor-Based Technology
Variable Performance at all Speeds
Electronically Controlled to Provide Rapid Response
Capable of locking pressure to maintain traction until no longer needed
Front and rear axle applications
Variable LSD with Full Locking Ability
Uses Gear Oil as Hydraulic Fluid
Electronic Control Signal Supplied by Vehicle Traction Control System
Advantage: Normally Open, Variable, Controllable, Full Locking Ability
Disadvantages: None
EHLSD/Electro-Hydraulic Limited Slip Differential
Full Locking Capability
Principle of Operation

Features
Integrated and optimized with drivetrain to exceed wheeled vehicle performance requirements
Electronically controlled to provide rapid response for stability and traction control
Automatically identifies optimal traction solution
Uses separate pressurized oil system
Full locking ability at any speed
Uses standard gear oil
Maintenance free
Benefits
Improved vehicle control for safety, mobility and roll-over protection
Electronically controlled actuation eliminates driver interface; no driver training needed
Superior vehicle cross-country mobility
Low maintenance cost
Detroit Truetrac Differential
The Detroit Truetrac remains the leading helical gear-type limited slip differential in the industry. It's proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.
Smooth operation
Performs open until needed
Fully automatic limited slip
http://www.eaton.com...HMMWV/CT_177753