There are mainly 2 types of Honda made LSDs:
Gear Type or Clutch Type
A third type is Viscous but its very rare and expensive.
Gear Types have gears inside of them that mesh/engage together when load is detected. This type is good to have because youll probably never have to replace worn internal LSD parts unlike the clutch type. The downside is that they can internally break if your into rough circut racing. Lifting a front wheel in a turn and landing back on it is how the LSD can break. Real stiff suspension is a major factor in making a car lift during a turn.
Clutch Types have small clutches inside that engage when load is being detected. These LSDs wont break if you happen to lift a wheel. The only real downside to this type of LSD is wearing of the clutches. Just like the clutch disc inside of your tranny the clutches inside this LSD wear out too and needs replacement.
Viscous Type are similar to the viscous LSDs used in some AWD vehicles. The way these work is that a special fluid is used in the differential THICKENS when excessive slip is induced. Stators and impellors in the diff make this even more efficient. Although there is a slight delay in locking of the differential they work very well and last a long time.According to my resources these were special order LSDs for JDM 96-97 ITR integras only. No other countries would receive this optional LSD only Japan. The cost was about twice as much as a the common Gear type found in all ITRs and CTRs. One odd thing though Honda of Japan does NOT have this optional LSD type for 98+ ITRs! Im pretty sure it fits in 98+ ITR trannys though.
Hope this could help you out some Taylor.