I was driving around on snowpacked highways last weekend and a question came to mind. It sounds like several people have created problems with the driveshaft and/or front diff when they forgot to take their X out of 4wd and drove on pavement for a distance. At what point do you think the road becomes snowpacked enough to leave the X in 4 hi and no damage will occur? I never thought about this with my CJ-7 and first gen X but it sounds like I might want to with my new X. I would leave the previous vehicles in 4wd even if the snow was "patchy". Occasionally I would take the vehicle out of 4wd and put it back in to releave stress but if I thought I needed it, I left it in. Thoughts?