Re: rear locker
There are major advantages to having an open diff while offroad versus being welded. I have been welded in the back in the past so I am speaking from experience. When you are welded in the back you loose a lot of steering radius. You will find yourself having to make multi-point turns whilst welded versus open. This is especially true on dry dirt, and other surfaces which you have a lot of traction. It ends up being a lot of extra effort, no matter which way you look at it. HOWEVER, being locked in the rear affords you such an increase in traction in the harder and more difficult terrain that it often times outweighs the disadvantages. The thing about the Rovers having the air lockers means that they have the best of both worlds: extreme traction when needed, and ease of maneuvering when needed as well.