Im not sure what your asking, but ill try to answer what i think your askin.
A limited slip and a locker are 2 different things....
LS is just that, it limits the amount of diff/tire slip. If you get one tire in water or off the ground, it will spin while the other does not.
A locker absolutly ties the two tires together. Unless its "unloaded", ( ie: decelerating very hard) then it acts like a normal open diff. As soon as it becomes loaded again, it locks the two axles back together.
If one tire is in water or off the ground, both tires spin, or an axle breaks.
Lockers SUCK in the ice/snow. You will be in the ditch faster than the speed of thought. When both tires spin, the rear of your truck goes to the lowest elevation on the road. So if the whole road has a slight lean toward the on-comming lane, guess where your rear end is headed!!!
Just a little FYI.
Todd S.