Get to grips with diff lockers & traction aids.
Diff lockers and traction control are traction aids which give vital assistance in delivering torque to the wheels with the most traction. So if you're a keen off roader who loves tackling the steepest, most uneven challenging tracks, you should take a close look at diff lockers and traction aids.
The main benefits of a locking rear differential.
Locking differentials ensure both wheels travel at the same speed, which means when traction is lost on one wheel, both wheels will continue to rotate regardless of friction. Diff lockers can be installed to the front or rear axle, or even both axles if you want to do some seriously tough off road tracks.
The primary situations when you'd need a locking differential.
To begin with, you will not need a diff lock for on road journeys, except if you will be traversing harsh weather conditions like snow or ice when you'd need additional traction. In most circumstances you would only use your diff lock when going off road on tricky tracks, dirt roads, on gravel or slippery mud.