i have a few opinions on this topic. one is the limited slip diff.i think this is actually part of the problem with the rear sliding and the front pushing.normally when one wheel is spinning the other is helping to keep the the rear from sliding.in our case the diff kicks in and causes the rear to slide because both wheels are spinning.
the same holds true for the pushing.when both rear wheels are turning they tend to push the front wheels.when you are not in the snow and you turn the wheels turn at different speeds, when they are spinning in the snow they are working like a locked diff and push the front wheels.like when you are in 4 lo on dry pavement.
also i think the short wheelbase does not help matters.i think that a combination of all these things cause the problems some a having.i have just learned to deal with it and compensate for it.and i found that not using power mode helps and using winter mode helps also.and if the conditions get to bad i use 4 lo . just my 2 cents. shawn