There seems to be a lot of confusion in this thread regarding the terms being used so I'll throw my 2 cents in as it applies in my experience.
LSD = Limited Slip Differential
Locker = Locking Differential
Lockers can be either selectable, like ARB, Harrop or the factory e-locker or full time non-selectable like the Detroit or Lokka. In my experience (and certainly in local terms where I live) a "lunchbox locker" refers to a non-selectable locker.
LSD's are not lockers, IMO, by definition because they don't lock. While a LSD can aid traction, they will still allow a wheel to spin, especially if one is off the ground.
All that said, back when I had a Rover, a front and rear Detroit TrueTrac was a somewhat popular mod for the Discovery II. The brake modulating electronic traction control and the limited slip TrueTrac complemented each other well without going with a locker and the additional expense that entailed like having to upgrade axles.
I would think similar would apply to the 100 and it's ATRAC system, but unfortunately, Detroit doesn't make a TrueTrac for the 100. I'm not well schooled in other LSD options for the 100.
Nope that helps a little.
LSD = Limited Slip Differential
Locker = Locking Differential
Lockers can be either selectable, like ARB, Harrop or the factory e-locker or full time non-selectable like the Detroit or Lokka. In my experience (and certainly in local terms where I live) a "lunchbox locker" refers to a non-selectable locker.
LSD's are not lockers, IMO, by definition because they don't lock. While a LSD can aid traction, they will still allow a wheel to spin, especially if one is off the ground.
All that said, back when I had a Rover, a front and rear Detroit TrueTrac was a somewhat popular mod for the Discovery II. The brake modulating electronic traction control and the limited slip TrueTrac complemented each other well without going with a locker and the additional expense that entailed like having to upgrade axles.
I would think similar would apply to the 100 and it's ATRAC system, but unfortunately, Detroit doesn't make a TrueTrac for the 100. I'm not well schooled in other LSD options for the 100.
Nope that helps a little.