There are two types of locking differentials: selectable or automatic. An auto locking differential, aka locker, does not have an external connection outside the axle housing and automatically locks or unlocks depending on the forces put upon on it. Here, @eatonperformance gives a great explanation of how the Detroit auto Locker works. ♻️ from Eaton・・・Do you have the legendary Detroit Locker in your car, truck, or Jeep?The Detroit Locker is an automatic locking differential that provides ultimat