I have a 2009 Jeep Wrangler. I was coming home from work and heard something like a pop and grind but was still able to drive the Jeep. I made it home and put it in reverse to pull in my driveway and the Jeep just stopped. Would not go in reverse or forward. Figured I had transmission problems and had it towed to the dealer. The dealer said the front transfer case exploded because I had it in 4WD and drove it on pavement. The night before I had it in 4WD but took it out of 4WD, was able to drive it 40 miles the next day to work and 40 miles home. How would I be able to do that if I was in 4WD? The dealer said this is not covered by warranty even though I have lifetime warranty. He said it was my fault. I don't understand. Anyone else have problems like this?