searched already, but

Thats assuming you are replacing it with a disengageable diff lock, then i suppose so.

The permanent style give u traction all the time (detroit, lokka etc)

Rev

you would have to make sure that the diff lock will fit in where the LSD used to. sometimes the diff housing is slightly different in size, open to LSD.

Conman,

air locker off is the same as an open diff. If you have a constant 4wd it makes no difference at all, eg 80 series. if you have part time eg patrol ,it will be noticable in slippery on road conditions,but the off road benifit is exceptional.

Greg

This is the case , certainly in my Patrol which had good LSD, however its mixed bag and overall its worth it. For these reasons and others your 1st ARB Diff lock should always go in front axle in a Patrol.

I notice it on wet roads , when appling power, it certainly spins a back wheel
more easily , however across side slopes the open diff tracks better and does
not push back around as much as LSD.

The rear locker when engaged helps somewhat , but not as much as a set of fresh tyres but overall my assement is that it is worth it.

Robin Miller