I'm trying to follow along, but think I got lost. I know what a lockrite is (had one in my YJ) and i know about the montero sport axel swap(via this site), but if i'm reading this thread right, the sport axel swap is the aussie locker? Note, my goal in the end is to have rear disk brakes and have an "on road" friendly locker in the rear which is why this thread is very interesting to me. I don't plan on doing much adding of power. I'm ok with going slow:)

To add on to what Justice said, the selectable locker is most desirable for the street/off street combination (in my opinion) because you can run fully locked or open whenever you feel the need.

That said, the reason the "lockrite" would be better than a welded diff is that it allows the diff to "ratchet" as the inner and outer wheels turn at different rates through tight turns on a "grippy" surface. There is some benefit in terms of tire wear when the rig is driven on the road a lot. There are also manufacturer recommendations regarding how much power you put to them and their reliability, but with the factory Montero/Raider 2.6, I don't consider that to be much of a concern. So, while this is not a selectable solution, it is a compromise for both uses.

I don't know enough about LSDs to give any type of knowledgable comparison, so I'll leave that to someone else.

swapping the rear end is easier than swapping the rear diff, and yes i have welded many diff's I even did a write up on here. <img src="/forums/images/graemlins/smile.gif" alt="" />