I can tell you for a fact that the stock Nissan rearend is TOUGH! My installer on my air locker was shocked at the size of the rearend and axles in my Xterra. Your rearend can take it with little problem. In fact, you will toughen it further by adding the air locker. When you see how pathetic the LSD clutch plates are, you will understand why you hate it so much. It's one of the wimpiest LSD rearends I have ever seen.