is there any such thing as a limited slip diff WITH a locker option? as in with quadra drive you keep the auto 4x4 capability but have lockers for when you really need the extra traction?

 

The Auburn ECTED is a LDS unlocked and almost a full locker when you push the button. Mfg says it's a full locker but people who run them say they don't completely lock sometimes. They also don't like big tires.