I found it a little strange too - but on a closer look, you can see the post dates reveal that an old thread has been "revived", and what you most likely have is a newbie asking advice.

To my mind it's a fair question and I have wondered about it myself - I recognise that an LSD will do nothing for you if you have a wheel up, but what about when you have both wheels down, in sand - you do have some traction.  Yes, depending on the type of LSD, they wear rapidly, but quite a few manufacturers fit them to the rear of their larger 4WDs either standard or as an option - they must have some benefit.

Going off on a tangent - I recently picked up one of the smaller Mitsubishis - a Pajero Io (Pajero Pinin), it's about the size of a 5-dr SideKick - I have yet to figure out if does have an LSD which apparently was standard in some markets.

For off road use the torsen style LSD's act almost like a open diff, and the clutch types require rebuilding fairly often if you are a hard wheeler. If anything leave the rear open and put a locker up front and mod the transfercase with a 2L twin stick.

For off road use the torsen style LSD's act almost like a open diff, and the clutch types require rebuilding fairly often if you are a hard wheeler. If anything leave the rear open and put a locker up front and mod the transfercase with a 2L twin stick.

Yep, that's what I did for many years.  Even took a rig out to Moab back in 2000 setup this way and it performed fairly well.

I had a limets slip on my ford truck and it worked great. I was thinking have one front and rear in my tracker would work the same way. I had a lockright in my falcon with a 9" and it brock after 100 miles. But i guess the ones made for these are better. Oh and i could not stand the clicking around corners.

I go all kinds of places in my open diff Samurais.  I wouldn't think of taking one out to Moab, but for most muddy, forest trails, the open diff is just fine.  It's all about knowing your vehicle capabilitles and how to approach various obstacles.  I've actually had quite a few Jeep runners on the trail that thought I was locked front/rear when I was driving an open diff Samurai-on bald ATs none the less.

Amen!