When you want to turn sharply in your 4x4, simply engage a cutting brake for one of the rear wheels and this will let the front axle pull you around the turn. This works very well in a vehicle that either has a selectable rear locker and/or a transfer case that allows you to engage the front axle only. If you have a full-time locker in the rear like a Detroit, you need to engage the front axle only, otherwise the rear tires will drive through the cutting brakes. If you have a rear selectable locker like an ARB, Ox, or E-locker that gives you an open differential when unlocked, you can unlock the rear locker but still engage four-wheel drive when you use one rear cutting brake. This will send the power to the three unlocked wheels and you will pivot around the locked one.