Them electronic transfer cases are the most worthless heap imagined. with a manual transfer case, a man wouldn't have all these issues. I was over in the hart mountain wildlife refuge with my dad on a trip a couple years ago. His F-250 had an electronic t-case. we hit this jeep trail by accident and we couldn't turn around or nothin. we tried to hit 4 low, but it wouldn't shift. we tried and tried, we finally got 4 high, but that was a rough 3 hrs. when we hit gravel again finally, we tried it and hit 4 low. those things are trash. i hate them. i hate trusting computers too.