Detroit lockers are also automatic lockers, and they are full carrier lockers.
Unlike the lunchbox style lockers, Detroit lockers require replacing the full carrier. You have to re-setup the gears when you use this type of locker.
However, Detroit lockers are stronger than lunchbox lockers.
This type of lockers give 100% traction to the vehicles, and it keeps both the wheels in driving mode.
Detroit lockers lock when you do straight-line driving. That means it delivers full driveline torque to both the wheels equally. As a result of this, both wheels can provide the highest traction.