do you want a 1 way or 1.5 way LSD for FWD rally cars?
Is the Helical type LSD more durable than clutch type? they are  1 way most of the time though if 1.5 way is better for rally...  

will it benefit alot on snow surface? what type of driving management is differ than open wheels on snow? like do you need to stay on the gas abit to "Activate" the function of the LSD during cornering?

Any input will be appreciated...
newbie.